The Truth Behind Masks on Planes
Вставка
- Опубліковано 20 кві 2022
- Roger Seheult, MD of MedCram discusses the effectiveness of masks on planes. See all Dr. Seheult's videos at: www.medcram.com/?Y...
(This video was recorded on April 20, 2022)
Roger Seheult, MD is the co-founder and lead professor at www.medcram.com/?Y...
He is Board Certified in Internal Medicine, Pulmonary Disease, Critical Care, and Sleep Medicine and an Associate Professor at the University of California, Riverside School of Medicine.
LINKS / REFERENCES:
Judge Kathryn Kimball Mizelle's ruling striking down transportation mask mandate (CNN) | www.cnn.com/2022/04/19/politi...
Transmission of SARS-CoV-2 during air travel (Annals of Medicine) | www.ncbi.nlm.nih.gov/pmc/arti...
Federal Judge Strikes Down Mask Mandate for Planes (NYT) | www.nytimes.com/2022/04/18/us...
Transmission of SARS-CoV-2 during a 2-h domestic flight to Okinawa, Japan, March 2020 (ISIRV) | onlinelibrary.wiley.com/doi/f...
All coronavirus updates are at MedCram.com (including more discussion on new COVID variants, omicron variant, CDC, and more).
SUBSCRIBE TO THE MEDCRAM UA-cam CHANNEL:
ua-cam.com/users/MEDCRAMv...
Get notified of new videos by hitting the bell icon
MEDCRAM WORKS WITH MEDICAL PROGRAMS AND HOSPITALS:
MedCram offers group discounts for students and medical programs, hospitals, and other institutions. Contact us at customers@medcram.com if you are interested.
MEDIA CONTACT:
Media Contact: customers@medcram.com
Media contact info: www.medcram.com/pages/media-c...
Video Produced by Kyle Allred
FOLLOW US ON SOCIAL MEDIA:
/ medcram
/ medcramvideos
/ medcram
DISCLAIMER:
MedCram medical videos are for medical education and exam preparation, and NOT intended to replace recommendations from your doctor.
#COVID19 #Omicron #Coronavirus
Go to www.medcram.com for more information about this and many other medical topics including CME for health care professionals including physicians, nurses, PAs, and RTs.
I don't think you understand how masks work and you didn't distinguish between the different types of masks and quality of seal. Masks (the medical ones not the cotton ones), as you said at some point, are not coffee filters, they are mini HEPA filters and filter aerosols with their electrets.
Omicron being more aerosolised and highly contagious, surgical masks don't work half as well, but well fitted N95/FFP2 or higher grade still work well against the virus.
Love the content, as always! Thanks. We'll wear masks on planes and hope the air purification works.
If an N95 fails to block 95% of aerosols I'm happy to block 50% or whatever - to reduce inoculum.
@@Photoandcargeek He didn't distinguish them because the study didn't. According to the study all you have to wear was ANY kind of mask - meaning that even non-N95 masks could work given that the probability that the majority wearing a mask were not wearing an N-95 masks.
Nobody has a right to infect someone else with a deadly virus and suffocate them to death from a lung disease like COVID. ( especially a judge with zero science based educational background) their are a plethora of laws that prohibit rights and freedoms of USA citizens there is no absolute freedom in America unlike a lot of idiots think. Let's hear about VIRAL LOAD and wearing a mask? Don't forget zero ventilation when plane is parked.
ลล
People talk about how safe the air in the cabin is (40% recycled through HEPA filters and 60% fresh), but they forget to mention that this is true only when the airplane is in the air and pressurized. When on the ground or taxiing, you might as well be in an overcrowded elevator.
The air in the cabin will be safe only if they screen patients for COVID before the flight. If one infected gets on the flight, the fresh air and HEPA filters do not matter, as in the Japanse study in the video.
HEPA filters still doing their job. It's the airport that's the problem
@@Watchamacallit000 HEPA filters aren’t active when you’re on the ground, only when in the air and pressurized.
@@Watchamacallit000 The Japanese study was done in a plane, I assume with HEPA filter. People were getting infected left and right from 1 infected person, despite HEPA and masks. Do not delude yourself.
Half the planet is infected, so does it really matter.
Seems like a logical, balanced proposal would be for airlines/airports to request travelers with any cold-like symptoms to wear a mask. That could've been a reasonable request for years before everyone lost their minds.
I’m sorry but I don’t NEED anyone to request me to wear a mask, common sense tells me that 1) if I’m sick, stay home and 2) if I can’t than make sure I have plenty of tissues and take medicines to minimize the symptoms. People need to realize that natural virus exposure creates a more robust immune system, so be germaphobic is NOT a good thing. Given that this man made virus was created by people who are using people as guinea pigs, I understand the uncertainty of what to do to protect yourself, I get it. But masks as worn by 99.9 % of people are actually doing MORE harm than good. Planes use silver in their filtration systems-silver kills MRSA.
and be smart enough to recognise that people with hay fever will exhibit cold like symptoms without any infection whatsoever.
I'll be coughing and sneezing constantly on aircraft because of the dry air for example, not because I'm sick.
And also be smart enough to realize when you go with those MOST LIKELY to have covid due to allergy like symptoms, especially now with Omicron, some will not have Omicron but will indeed have allergies or a cold, but that's the price of public health. I find that to be a fair compromise.
Seems like a good proposal to just fly people from one place to another and stop being the police
No, it would not be reasonable. We have tissues and handkerchiefs for a reason.
We sat in front of a person who coughed over us for 14 hours on a trip to Canada. They were obviously unwell prior to the flight, but chose to fly rather than lose their holiday. We were bed ridden for a week with influenza . How I admire the Japanese who consider others when they are ill.
Were you wearing masks?
@@theyancyacook No this was way before Covid was an issue.
For the Japanese is cultural due to a mass pandemic in the past. They been doing this for so long now it's a matter of habit and why they weren't hit nearly as bad as others.
I don't understand people sometimes. They are sick. They are coughing. They don't even cover their mouth when they cough or sneeze. I had a coworker that would do that, and it was so disgusting watching her cough up a storm, never cover her mouth. Made me gag.
@@CommentsAllowed Some people are just selfish and stupid. Hell look at the recent elections in the USA and you get a perfect example. Look how many voted for Herschel Walker who everything bad as a person and can't get sentence out that makes sense. It's about what they want and they will ignore facts and realty if they think they are going to get it.
Standing in line for TSA and in the boarding ramp could be another consideration. That hour before takeoff and after landing has been my concern when I'm traveling.
You are absolutely right. People pack in while walking into the planes and getting out everyone is breathing into one’s shoulders. No distance at all whatsoever
@@l.g.8028 If everyone does use distancing, the air movement at the gate is never helpful.
@@l.g.8028 It's hard to have information and are around so people who don't.
well yeah and you can't stay two metres away from other people either - the whole thing is a joke
@@mikewood8695 For me, I'm not as worried about separation if there's positive and negative ventilation - supply and active return.
It sucks to be sick during a trip. Especially being sick on vacation. I’m still gonna wear a mask on a flight.
I have followed you from day one since Covid hit here ! You are the most informative person and it has helped me ! Thank you
I remember watching a documentary on TV about the spread of tuberculosis on an international flight. IIRC, the new "recipient" of the virus was sitting @ the front of the passenger area while the "index" was @ the back. The new patient had to fight like h-ll w/ the airline to try to get info about the source of his/her illness as there were no other possible sources. As an asthmatic I plan to continue to wear a mask
I support people doing what’s best for them. I’ll tell you as an operating room nurse-we have to do an N-95 fit test every year. The only mask that will truly prevent TB spread is N-95. I’ve long wondered why in all this covid chaos there was zero comparison or education to our mass public that tuberculosis kills millions every year world wide and it’s AIRBORNE. In the United States it is managed well. Public health departments track every tuberculosis case and have for years. They ensure medications are being taken to prevent it from being “active”.
I’m not entirely sure, but isn’t tuberculosis far more transmissible than covid?
Same here
@@birdgirl1516 Yep. And this same reasoning is what has had me scratching my head for two years now on why the lack of emphasis on N95 or at least KN95 mask preference.
@@themarathoncontinues4211
Actually no. COVID is way more contagious than TB.
yeah, as someone prone to picking up colds, I was wearing masks on planes for several years before the pandemic. it's not *just* the germs floating around - the cabin air dries out your sinuses and makes you more susceptible to picking up bugs. wearing a mask keeps things a little more moist/normal.
The one part of your comment struck me...it was regarding the nasal passagrpes drying out, CAUSING lower resistance to getting a viral, or bacterial infection. It is SO true. Over thirty years ago, I read an article about a product called Alkolol. It was a nasal drop/spray solution that came in a tall bottle. In the explanation, it stated that when the nasal passages dry out, it is prime time to get infected because the delicate lining of the respiratory tract is subject to germs invading the tissue. Moisture helps the body's ability to get the saliva moving through the natural filters, OUT of the body. I bought a bottle, and did use this product for years. When I couldn't find it, I used plain nasal drops, NOT medicated ones which dry out the passages further. I DON'T get colds. I get allergic reactions to Cottonwood, which cause my eyes to burn, but I have done really well resisting colds. The product includes alcohol to kill germs, and an oil to lubricate the passages. I did find it again, and it now comes in a convenient small plastic squeeze bottle. This concept is so spot on, and a solution could be made DIY using the proper amounts of the ingredients. A cheap and easy fix to avoid the irritating common cold, and other viruses.
THIS. For me personally, masks have always been useful for two things. The first, is temperature control when the air is too cold and dry, so my breath stays moist and warm (important for my asthma, as extremes of humidity or temperature in either direction could cause problems). The other, is for me to keep my own fluids and droplets in my mask when I’m sick so I can reduce the likelihood of infecting others. I personally do not think masks have, in my own experience, prevented me from getting sick from someone else- my first bout of Covid I was in South America and everyone was forced to wear masks all the time under military “toque de queda.” You couldn’t even go downstairs in your own apartment building at street level without wearing a mask because the military and cops were constantly surveilling everyone. For an aerosol spreading disease, unless we’re all wearing astronaut suits eventually everyone is going to get it. I just personally prefer not to sneeze and cough on other people to do what little I can. That being said, there are many valid reasons not to mask- like wanting access to fresh air outdoors, or having respiratory conditions that make it hard to wear (masking is a lot harder for me when it’s hotter weather)
Thanks Doc! I was wearing masks on long flights way before the pandemic to protect against the other upper respiratory ailments that You also mentioned at the end of your vid
A mask cannot prevent viral transmission
"In a review of studies that looked at five eight-hour flights where some passengers tested positive for the coronavirus, the virus was not passed on to any other passengers when mask requirements were enforced. Meanwhile, on three flights where masks were not widely worn, between two and 15 additional passengers contracted the virus within two weeks of disembarking."
Wash Post article today.
Thank you very much. I think the interesting thing that we’re going to see is just because there’s no mandate it doesn’t mean that there are no consequences.
Washington Compost, like a Wikipedia source, Democracy dies with Jeff Bezos.
LOVE the breakdown of the study. You are a gifted teacher!
Excellent explanation., makes perfect sense. I have relatives that lived in Japan, and they always wear mask ,at the sign of a cough or cold.. Me and a friend were visiting someone , my friend had on a mask but I didn't. I was coughed on and contracted covid. The friend wearing the mask was in the same area but wasn't infected.. We will be travelling abroad this Summer and I will absolutely wear a mask the entire travel time... Some barrier is better than none at all.... It's sad that some people have little regards for others... If you are sick or coughing constantly stay away from others or wear a mask or 2...
Did you actually listen to Dr. Seheult? That you ended up getting "coughed on" and then contracted "covid" are completely unrelated to the fact that you were without a piece of blue plastic strapped to your face. Or floral cloth looped over your ears. By saying, "Some barrier is better than none at all." shows that you are both superstitious *_and_* unteachable.
Great wisdom Yes. Thank you!
The only effective masks to wear are N95 or KN95. Just try fogging up a mirror thru it! 👍🏻
It isn't lack of care for others when even healthy people are mandated to wear a mask and by the way apparently when you're eating you no longer care for someone? Since of course people are going to eat and drink on a plane it is silly to mandate everyone wear one including CHILDREN. An international flight with your face covered for 13 hours...no thanks. I agree that people that travel when ill (SOMETIMES UNAVOIDABLE necessary travel!) could do better by either choosing themselves to maybe wear a mask or at the least coughing into a cloth. Healthy people should not be mandated to wear masks, even ill people shouldn't be "mandated"...
@@sandyoptimismrules2512What you're basically saying is that you don't know much about virology, haven't reviewed recent research relevant to plane travel, and don't realize that vaccinated, asymptomatic-but-infected people still spread the virus. 13 hours on an international flight is indeed a long time, yet surgeons and others in OR do this on a daily basis.
My aunt, now retired blood lab technician is very allergic to pet dander.
She tells me if any pets are on board a flight that she’s on (passenger cabin) she will be able to tell in spite of the hepa ventilation.
I imagine the dander particles are much larger than viruses?
She should drive,that way the pets don't bother her.
The dander could be on passengers, so if they sat near her, she could be affected. My daughter is like that with cat dander
@@mrs.c5471 That’s a great point!
@@grayrecluse7496 Drive to Asia? Or Europe? Or Hawaii? or.... people leave continental USA.
@@billytheweasel Did he say anything about her going to those places? Before the common cold, got so scary,was she fly then, how did she survive her traveling before 2020. That a good question ?
Why should the whole aviation industry, change for the .01% of it's passenger?
Well done coverage of the situation. The point made toward the end of the video regarding upper respiratory issues after flights being experienced well before the current pandemic is spot on. Ventilation onboard planes is quite effective once it is turned on. During boarding, passenger loading, and sitting on the tarmac preparing for takeoff however, the situation is quite different and often very stuffy to the point of being uncomfortable. For higher risk individuals, the immunocompromised, the unvaccinated, and those that care for them, the choice seems pretty clear.
To make matters worse you never know how much time you will spend on the tarmac with the AC off. It's not unheard of to just sit there locked inside literally for hours in case of some scheduling mishaps
I've heard multiple frequent fliers claim that they stopped getting the cold or the flu after flying once the mask mandates were implemented. It's hearsay, but I think it's a prominent enough personal experience to pay attention to
Check your science: the vaxxed are more likely to get and transmit and get seriously ill than the unvaxxed.
A fact based and science driven datas and opinions…..
Very informative video clip and comments ….
Thanks a lot 😊
Peace and Love from Japan 🇯🇵
@@NJ-wb1cz 0
Yes, those people should probably be wearing a RESPIRATOR (not a mask), such as an N95 or ideally an N99, pretty much any time they are in a shared space.
You’re content is infinitely valuable. I hope you understand how important your example is
Yesterday in a big box store some one had a very deep cough and saw him touch his mask 2 times in a short time, he was wearing a mask and was talking with 2 over guys with no masks and everyone close to each others and the 3 were Asian and had to be vaxed, as I went by he was coughing hard towards me so I old my breath a bit as I was passing by. It shows the responsibility of someone being sick and stil go in public while he did not had to be
I worry more about snakes on a plane.
I worry about dumb people...
@@paulocl2 I do too. They would bring snakes on the plane!
Looks like someone finally got the joke!
The case study correlates with others I've seen in presentations at The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) on SARS-COV 1 and influenza transmission. However, the largest risk factor not mentioned in the video is use of/seat assignment near passenger compartment toilets. SARS-COV 2 has been isolated in feces. Computational Fluid Dynamic Analysis (CFD) of the aerosol generation by flushing in the toilet is incredibly large even though there is "suction" in the bowl. Besides if patient zero used the toilet and/or queued up to use the toilet and others queued up near patient zero, they might of received an infectious dose especially since he was in an aisle seat. My rule when flying is don't sit near a toilet or use the toilet.
Thank you, Dr. Seheult. You have been a valuable source of information for me. I appreciate your calm, methodical explanations, which lower the "temperature in the room" around these topics.
you had over two years to learn the taxonomy and poor scientific rigor to back up the dissemination of pseudo science marketing quacks snake oils!
I agree with the lowering the temperature of the conversation and facts only. Very good information.
There are so many things wrong with this discussion that you should forget all the explanations and just go with " wear an N95 when inside anything where there are people. Remember long COVID which wasn't even known at the time of the old studies he references. You may not end up dying, but maybe wish you had!
Yes. My friend travels for work and always gets sick after air travel ( prepandemic). I prefer the extra barrier.
I just got back a couple of days ago. Also did air travel and feel sick AF ever since.
He should wear an N95 mask.
I'd only recently learned the air in planes also goes through HEPA filters. Was surprised the airlines actually added that. Had always assumed the whole plane sharing their germs. That makes happy we are not.
Airlines didn't add this as part of COVID-19 mitigation, it's been part of the design for quite a while.
@@brianwright9514 I'm awares yes
It didnt sound like you knew that before by the way you wrote it lol
Thankfully I’ve gotten so used to wearing a mask I don’t seeing going maskless on future flights no matter how covid progresses.
Love the mix of units between Metric and Imperial. I personally noted that the second study did Not consider whether the index case moved around the cabin at all, e.g., to go to the "bathroom". This could well add to the spread of the virus and give a direction of spread, depending on where the facilitiies were in relation to the index case's seat. (Usually these facilities would be to the rear of this plane type.) Such movement would be more likely on longer flights but should have been considered.
Some people get caught up in units but we all know what we are talking about.
Where is the person with the infection, where is the hepa filter, what's between the filter and the infected person? answer the other passengers.
Great video! I do wish you could talk about the science of the difference between surgical masks and N95s.
Yes. Also, the virus can enter via the eyes.
Watch the You Tube Station Aaron Collins - he is an Aerosol Engineer who has been reporting on N 95 and Kn 95 masks ( testing them) thru out the Pandemic. You will learn alot about masks
You demonstrated how the airflow within a plane helps reduce the spread of viruses. However, the greater potential for spread is when passengers are boarding and debarking the plane when the airflow is typically off. We can all relate to the experience of the plane getting very warm and stuffy when not in flight. It’s during these times I would expect is the greatest chances of spreading a virus.
Good point
Logical. Was thinking this too
Planes were keeping airflow going during embark/debark times-at least they were in 2020 and 2021. confess I did not notice last month if that continued....
Great video, I wish I could have seen this same paper and video in 2000. I must have missed it. So many would have been maybe a bit more willing to wear a mask in flight. When I flew {in USA in late Feb 2020) I wore a mask in the airport and on the plane (I'm a chemical engineer so I know about these things inherently, and deduced the benefit would be there just on plain experience with a lifetime of lab testing in such areas) and I will never forget the mean looks and stares I got from people all around me, as if I was deranged. Looking back I recall this uncomfortable memory. Still, I continued to wear it for the entire 8 hour flight. whew. Peace everybody.
@blissbrain i wore a mask at a grocery store in feb2020 and a couple was laughing at me and i overheard them say “is this where we’re headed?!” Lol…little did they know 🤷🏾♀️
@@IndigobluBeauty In a word…YES. (Unfortunately.) Glad you had the good sense to know how to protect yourself pre-vaccine.
I wear not only a surgical mask but a gas mask with hepa filters and i do not give a slightest fck how anyone is looking at me - was flying during covid outbreaks with no vaccination (in europe it started quite late for younger people) and as a plus it also filters all the nasty smells from other people. I will wear gas mask on a plane from now on whether there is covid or not - the best thing ever. No smell of nasty bodily odors or perfume
Chero
I don't think most anti maskers are big readers.
This is an extremely clear and useful presentation. Thank you!
thanks for the great information...have you reviewed any information on Enovide?
Amazing video. So informative. Thank you for this. I am going to be getting on a plane in a couple weeks, as Omicron BA. 2. is making its rounds. I was uncertain about the value of wearing a mask considering how contagious that virus is, but this convinced me that it's worth the effort. I may not get a 7 fold decrease in my chances of getting infected considering how transmissible this virus is now, but it will still count for something.
In regards to the return airflow being lower on an airplane. I can't recall if it was on this channel or from someplace like UCSF College of Medicine, but it was an interview with a gentleman who helped design the standards for airplane filtration way back when. The thing that stuck with me was that all those warm bodies cause air to flow upwards as heat rises. When that natural warm airflow meets the cool airflow from the planes ventilation system it can actually cause air to recirculate right around face level. Their point was that ideally the ventilation systems on planes would be reversed, so all of the air is flowing upwards. Something for a future video perhaps.
Interesting
The reasoning is that it's not about air itself, it's about particles. They still do have gravity working on them, and especially, of course, the bigger they are. So reversing airflow would _generally_ keep more particles in the air.
The return air would be low because cool air drops. It's a curtain or wash strategy (like in operating rooms). The air in your example assumes very still air; there is much turbulence and variation in the airplane cabin, not to mention the close proximity.
Thank you for posting this informative video. This takes time to record, edit and publish so thank you thank you.
Most informative & thanks so very much for the explanation. One question, the masks you mentioned here. Is it a regular surgical mask or an FFP2 mask ? Thanks in advance for your reply.
Always during the flu season, I would get sick when flying (with NO mask). The HEPA filtration system only works when they have the AC system on (either connected to power at door) or motors running. If you are on the runway stuck: you are sitting in a small tube breathing all the garbage from all your neighbors .
Facts
@@Marrow614 Look it up, not everyone wants to spoon feed you, while gaining weight in your basement
I always close those little overhead nozzles. It seems to help.
@@talega1 anytime the engines are running (including the APU), the cabin air is being circulated through the hepa filters. In other words, if the aircraft is stuck on the taxiway or the gate area waiting on a clearance, the hepa filters are filtering the cabin air.
@@basicforge The nozzles are pumping a combination of outside air and air that has passed through filtration. I would think closing them is the wrong thing to do.
This article makes no mention of mask type. N-95 masks are vastly different from the cloth masks that many people wear. From personal experience in the construction field when I wear an N-95 mask when sanding drywall compound at the end of the day there is no drywall dust in my nose. When I wear the type mask most often worn on airplanes there is always a white trail of dust around the top of the mask into my nose and my nose and sinuses are filled with drywall dust. Drywall dust particles are much much larger than viruses. A drywall particle is an aircraft carrier compared to a virus being a JetSki.
Great point. Masks are made of many different materials with little or no testing so most are likely quite inadequate to filter much at all. I saw one study suggesting people were breathing in nano-particles of masks and would probably develop lung issues because of this.
This video is badly missinformed. The N95 blocks *at least* 95% of 3 micrometer particles. Other size particles are blocked at a higher rate than 95%.
Most of the OSHA research and files they have destroyed in the past year explain that you need a full body suit for just about any mask to work.
Thank you for relating your experience with the different masks. Very on point.
@@leenewsom7517 Before they destroyed the OSHA online forms OSHA simply says you have to wear full body suit for a mass to be effective outside of a hospital.
Thank you very much Doc. My sister and brother in law have to fly sometimes and I am grateful for your critically important information.
As always, thanks for these excellent life-saving podcasts.
Did this study take into account that those on the plane could've been exposed to Covid-19 in another setting in addition to the plane? Ex: exposure in the airport prior to the flight, in the airport after the flight, on the shuttle to and from parking, the Uber driver, the elevator up to their apartment, at work, etc. Airplane passengers don't live in a bubble anymore than I do.
Thank you for taking the time and trouble to bring this info into the public arena!
What I see missing is the cultural difference between Japan and anywhere else. This was a flight from Tokyo to Naha, as that is a two hour flight. In Japan it was common for people with colds to wear face masks and common at the time of this flight. Was the person not Japanese or Okinawan? Why when it is custom to wear a face mask if you have a cold was this person not wearing one?
I was wondering the same thing. Also, people must have been very polite to not have insisted that a coughing person don a mask, or insist that they be moved away from him.
Really sad to think that the index person was sick and on a plane. I was at home sick at that time with covid (nearly killed me, actually), and it is not that the world did not have information yet. Masks may not have been common, but c'mon...to get onto a place while ill was incredibly negligent and inexcusable. Living through covid in spring 2020 was hell, especially since we had no idea what to do about it. It was basically wait weeks to see if you would live or die.
Most likely the person was not Japanese.
The World Economic Forum is killing us.
Two thoughts:
First, those airpack HEPA filters typically are switched out monthly. So how consistently effective they are over a 30-day span is simply not known. Probably more effective on day one than on day twenty-nine. It's not impossible to imagine they are pretty bad at the end of service, and may even contribute to viral spread rather than prevent it. But who knows?
Second, while an aisle seat may be upstream of the typical HVAC airflow, it is certainly downstream of every last person who walks, talks and coughs as they pass up (and down) the aisle. So, at least, a confounding effect that makes "is a window seat or an aisle seat a safer bet?" very difficult to demonstrate.
I'm still going to wear my mask on board.
Vladimir is correct. Efficiency actually improves as they load. At some point volume is decreased. Hopefully the monthly interval is sufficient to maintain proper airflow.
Thanks for the info. Was there any indication of the type of masks used like N-95 vs cloth? Do you think the results would have been different if all but the infected person were wearing N-95s?
Absolutely. Paper procedure masks are < 40% effective at trapping inbound particles, as you breathe around the mask frequently. N95s that have been correctly fit-tested hit 95% or better reduction, but when is the last time you saw someone in public doing a leak check? Most people don't have a clue about how to use an N95 properly, so they're not getting the 95% level of reduction.
Thank you so much for this information! I've been following this channel since the start of the pandemic and it's been a great resource to get factual data.
Thanks Doc for this very informative & pertinent information about COVID transmission during plane travel. We will be traveling on a plane in about 4 weeks. Originally, we had not planned on wearing masks during the flight. However, after watching this video, we will definitely be wearing our masks! 👍👍😉😉
Make sure you use the N95 and not the so called surgical masks that the airlines provide in the provided pouches on your seat.
Ya silly sausage
Masks are for sheep....please continue to show yourself
Yes . I will continue to wear a mask on planes. Not only because of droplets and aerosol droplet, but because the surfaces may or may not be sanitized. I travelled extensively on planes for business pre pandemic. I found I was always having colds and upper respiratory issues. I started to bring wipes and would wipe down the surfaces all around me including the seats. That helped tremendously in eliminating my illnesses when traveling. I am not a scientist with all kinds of data. I only know it works for me. Thank you doctor for this information.
Air on planes is very dry. When your mucous membranes dry out, they are less effective at stopping infections. Plus, air travel is stressful, not least because the air is much thinner than sea level. Stress impacts your immune system. I take lozenges on board and keep hydrated by drinking water. I also wet a napkin and dab the inside of my nostrils, don't care if I get funny looks.
@@EugeneSeidel There was a study done long ago, by the Swedish army. It showed spraying your nose with saline solution lessened infections of ordinary cold.
That’s my question: is it efficient to wipe down seats? This is what i did last year in the airport. Before sitting down I’d always wipe down the seat.
Your fact based knowledge sharing in an understandable way has made me feel informed, to understand why public health organizations have made certain decisions and being able to take the right measures for my family.
I flew recently for the first time since before covid and I wore a mask and used sanitizing wipes to wipe down my seat, arm rests and that table and I also did not use the bathroom on the plane. I was cautious before covid because flight crews don't have time to clean the seats and because I work in healthcare I know that there are many people that lack good hygiene habits.
Thanks Dr S. Nice to hear from you🇨🇦
Of course the main reason for an individual to wear a mask is so that they do not spread viruses if they are infectious.
Good to see they offer some protection when worn by non-infected people as well.
Wrong mask won't stop virus transmissions at all didn't keep hospitals from being filled also didn't stop people from being sick.
@@lilchi721 Masks won't stop spread completely but it greatly reduce it, depending on their quality and if they are worn properly.
No evidence that mask of any kind greatly reduced the spread cause the CDC never bothered to do any trials on it when they had the chance.
@@Syncop8rNZ yes, but the important thing is that masks ALWAYS help to some degree.
You're speaking of transmission "while in the air", at a certain height. What about when idle, while boarding, that 30+min of sitting there without HEPA Filtration turned on?
Also, how long are the filters good for, how often are they changed, and do they go through an official inspection to ensure proper installation?
Excellent questions. Yes when the engines are not running the air filtration is not occurring and this is the highest risk for transmission.
My conclusion as well. It does little good to know we're safe in flight when we've already been exposed on ground. It's too late. It takes mere minutes to contract it, as everyone's droplets are lingering everywhere inside, around us.
Dropping the mandate was reckless and irresponsible. It too is discriminating to the immunocompromised/unvaxxed, as they will be unable to travel via public transportation, or simply have to live in fear, and hope for the best. Deplorable! N95's are reliable, but not 100%. It takes all parties to participate to ensure the heath and safety of others.
The standard practice of the filter doesn't really matter now. It's futile. All we need to know is the virus, if present, will be contracted before takeoff.
Thank you for another great video. It's funny, I look at this and say, "I am DEFINITELY going to mask still". And I know others will look at the numbers and say, "I don't need to mask" because there's no guarantee I'll get sick. I remember saying in the past I'd always get sick after traveling. Frankly, I used to think it was from poor hand hygiene, but it must have been from respiratory droplets or aerosols containing virus particles. I bought a FloMask to travel by air in late December 2022 /Early January 2023. It has a silicone gasket that makes an amazing seal around your face, and has pro filters that aren't certified, but were tested to N95 standards. I felt so confident on those flights. I'd say about 1 out of 10 people were masked, very few were in N95 types, and although i was hoping to, I didn't see anyone else in a FloMask.
Thanks for this info. Just booked flight to DC and as always I chose the window seat as I don’t move around on a short flight -3 hrs. Maybe I should change my seat to aisle, although not worried about getting Covid as my vitamin D level is high and I also take C, Zinc, Quercetin etc what I’m concerned is the shedding - been affected twice, not fun. What if anything can I do to avoid shedding from anyone that vaccinated? Any help would be appreciated.
Regarding aerosol filtration of masks, please look up "An upper bound on one-to-one exposure to infectious human respiratory particles" which seems to contradict some of the statements here, especially when it comes to FFP2 or better masks (i.e. KN95)
Hey nice analysis! question about this: did they take into account masks in the terminal? I wonder how/if that would’ve shifted the numbers. And any new studies on infection of masked vs non-masked passengers when the COVID patient does wear a mask?
Great video, very informative as always ! 👍
thank you for the thoroughness. I appreciated no politics in all your videos.
Just based on this flight, your hypothesis that you are less likely to become infected sitting in an aisle seat does NOT hold up. I included both confirmed cases and probable cases as positive and assumed that all cases were infected while on the flight. Of those sitting in a window seat, 7 of 56 passengers became infected for a 12.5% infection rate. Of those sitting in center seats, 5 of 42 passengers became infected for a11.9% infection rate. Of those sitting in an aisle seat (not including the index case) 10 of 42 became infected for a 23.8% infection rate.
The risk for infection for passengers seated in an aisle seat was almost double that of passengers seated in a window seat or center seat. This makes sense when you realize that the infected passenger probably brushed against the passengers in the aisle seats (or might have coughed directly on them) while was getting on or off the plane or transiting between the infected passenger's seat and the restroom. In fact, the clusters of infected passengers might give an indication where the infected passenger was when coughs occurred. If droplets landed on another passenger's clothing, it might not make any difference as to whether or not they were wearing a mask, since hand to clothing or hand to eye contact might have been enough to spread the virus. It would be interesting to know who were wearing masks according to seating assignment.
I will be wearing a mask in confined spaces with other people in most situations for the foreseeable future, though less so in the summer if general levels of all respiratory diseases are lower. I used to get a cold, often a bad one every February March before the pandemic. I have not had a single cold since it started and mask wearing became common.
Great, guess what, if you isolate from other people, you might actually NEVER get a cold again, so please, go live in a cave...this world has turn mad.
Same here the last time I got sick was Jan 2020. I let up on mask wearing for the first time a few weeks ago and now have a sinus infection! Coincidence? I don't think so
Social distancing can keep colds away but that is not the best way to go for healthy people. Your immune system needs the training. There is even cross immunity between covid and colds caused by other corona viruses. You might get a worse covid infection if you shield yourself excessively.
@@ximmy90 shame on you. This is both truthful and is not a weak and fearful way of looking at things. It's important to appear fearful regardless of facts - do this at all times in all situations. The best way going forward is for people to avoid each other all together and wear space helmets if they ever are forced back into brief contact. Look at Shantel's story. Covered up her face for 2 years and avoided human contact. Small price to pay for avoiding a few days of stuffy nose. You realize ximmy I agree with you and am being saarcastic.
@@ximmy90 Well said ! We can't live in masks..Being a Germa phobe is detrimental to ones immune system. Covid is here to stay..
Thank you. Very well done and informative. I like your point of view, a lot.
It's still best to keep a coffin's length away from strangers and a double cadaver's length away from coughers ♡
Airborne vs aerosol precautions, surgical masks and face coverings are meant to protect others, n95 protects both the wearer and the others. Thanks for your work, much appreciated.
I can speak from experience, for ~10 years I flew monthly for my job. I noticed I got sick much more frequent immediately after being on the plane, especially overseas. It got to the point I dreaded flying. I have no doubt contagious airborne viruses spread in dense cabins, dangerously so if ventilation is poor as in airliner on the tarmac. In the future, regardless of Covid, I will be wearing N95 masks as soon as I enter the airport and have it on until I exit from destination airport. Thanks for the cutting thru the scientific papers.
It’s also that you’re being blasted with radiation, dehydrated, etc. your immune system takes a big hit flying.
Me too.
You getting sick is more because of the dry air and weakening of the immune system (as soon as you get out or the plane - during the flight infection risk is minimal) and the stress of travel, really slows down your immune system. You are often fatigued, because you sleep poorly the night before, you basically change timezones (really stressful for your system) and skip a night.
I noticed that I always was “feverish” a few days after a plane right.
But when I travelled for IBM (a lot) I never had any departure stress, I flu business class so I slept normally. And transfers to and from hotel and home were arranged.
So generally a very relaxing experience and I never had any issues. But that summer to US again and I was 4 days under the weather.
Thank you for all your information
Thanks for dropping this hot fire doc!! 🔥
You're right about the high chance of catching something on flights. One of the downsides of being being a commercial pilot or flight attendant is the high probability of catching almost every virus that's going around. What you or I occasionally do, they do for a living.
flight attendants suffer the most. Pilots have an isolated air supply with much higher rate of fresh air intake for safety reasons.
@@rcmrcm3370 Wrong. Pilots breathe the same air as everyone else. There are typically two air conditioning units on most aircraft (called PACKS). One is primarily directed for the front half of the airplane (including the cockpit), and one is for the aft half. The cockpit door doesn't provide a separate sealed off portion from the rest of the airplane.
@@davidgiles9751 uncle is a pilot. This is true for the 777’s he pilots. Not sure about the other planes but most likely true for the rest, according to him.
OR-here's a thought-their immune system is stronger due challenges. Just like a kid gets sick less and less often the longer they are in school
As a Flight Attendant, I disagree disagree everyone and even medcrams video.
Pilots do not get separate air (im also a pilot) in fact they sit up into he flight deck all day maskless, many of times my pilots have flown next to each other , maskless and one of them being covid positive without them knowing and the other pilot never caught it.
2. I've worked this whole pandemic flying around 700 or more passengers a week and no covid, that's 3k a week!
I only caught covid when the vaccine mandate was put into place and I caught it from a newly, freshly vaccinated coworker...
I find it ironic that covid cases went through the roof during the vaccine mandate, something doesn't add up.
Anyways, I've flown next to co workers prior who were positive for covid. I constantly got emails stating I flew with someone covid positive, yet never caught it, until the vaccine rolled out. I'm happy the mask mandate is gone and I hope it stays gone
Thank your presentation. I wish more people would listen and consider the health and well-being of others.
Thank you for your presentation
Then how come lockdowns didnt stop it? And idk what youre complaining about, hes talking about masks on a plane, which have been required the entire time.
Do you know how many people died in 2020 from covid age 18-55? 52,000
Do you know how many people died from fentanyl? 79,000
That means fentanyl is more dangerous and far more frequent than covid if you're not elderly.
This is about masks while FLYING. There's less than 300 deaths a day now. Move on Karen
@@carpe_poon5761 There are different grades of masks, some people do not wear the mask correctly or take them off during the flight. Lock downs should have only been used in brief spells. Where I am from we had brief lock downs and they worked. The problem is some countries left there borders open for too long and the disease spread. Furthermore some people have poor hygiene habits and didn't distance themselves from others. It is difficult to completely stop a highly infectious disease, particularly when people don't want to use some common sense. Masks can be highly effective but the quality of the mask is critical and the attitude of the person who wears it is also extremely important. I lived in two different countries during the pandemic and noticed the difference in attitude. The country which was slow to react did badly overall. But it did get access to vaccines early which seemed to help. The places where outbreaks occurred in the other country occurred due to human laziness - not wearing a mask when required and this lead to lockdowns. Where I am from cases where low and people went about their lives for 70 to 80 percent of the time without worrying about the virus.
@@superlight7654 Places like Australia and countries in Europe had lockdowns up through this winter and riots. People getting beat up by police for going for a walk. Some places saw improvement while others did not. Where I'm from nothing changed during lockdowns except mental health, businesses and the economy. I think lockdowns are not the way bc there's no stopping it. The risk reward just isn't justifiable in my opinion.
I think people did a poor job with the elderly prior to vaccines. If I knew elderly people I'd be conscious of that and social distance, sanitize my hands and phone. But idk how me going to a bar or restaurant puts elderly people at risk, which those are the highest at risk.
People who are around the elderly and or high risk individuals need to take those necessary precautions. If I was a nurse or patient care I'd obviously be taking extra precaution. Sucks for them but that's not my fault. I just didn't see the need for EVERYONE to be stressed and affected by it when it's situational. Everyone's situation are different.
I myself changed nothing about my life since 2019. What I heard on media and social media and what I saw with my eyes were two complete opposites. I wore my fav mask where it was required but that's about it. I worked overtime and everything. But i had no life bc everything was banned. Except boating, we all did our usual boat trips and none of us had any problems.
Nobody I knew died, nobody that I knew even know anyone that died. I can name less than ten people that I know of that even got it, including the present.
The forcing of vaccines to me is a joke. If it's so safe then you have nothing to worry about right, get the vaccine. But no, people obsessed over it and masks and vaccines were required by crazy people flipping out bc it was so politicized.
We took our dog to a dog friendly bar and had our masks on. At the door we were told we couldn't bring the dog in bc of covid🙄
I don't condone throwing a tantrum like some people did and they just couldn't accept it. I'm like it's not a big deal to wear it at the grocery or whatever then take it off outside. Whether you agree with it or not, it's just easier to play nice.
We were mandated at work and that was super annoying. One of my Dr offices still require you to wear masks. That's a bit much I think, especially with so much of the elderly population being vaccinated. And if you have illness or health conditions obviously its good to be vaccinated. I'm 38 and healthy as a horse, I want no part of it.
But there's people that act crazy about pushing masks and vaccines on everyone just like there's crazy people rebelling against it. Just like everything else. I try to walk a middle line with safety and others in mind.
A little bit of common sense and awareness go a long way. Washing hands, keeping distance at necessary times or around elderly people etc. Practice etiquette when you sneeze or cough, sanitize too. I go under my arm or shirt, i never put my hands on my face to cough or sneeze but ive always done that.
I still see people wearing masks. Nothing wrong with that and they don't act a certain way towards me. A guy working at the post office had one on. The ones that drive me nuts are people in their car driving by themselves. Or I've seen people driving convertibles with the top down wearing masks🤣
My parents never got it. My sister and a few of her kids got it, they were fine. They socially distanced and quarantined. Common sense.
I just hate that it's so politicized. They drew a line in the sand and it became like war. If you don't want the vaccine or vax mandates you're a "anti vaxer"(republican). If you're pro masks and pro mandate you're a liberal.
@@superlight7654 I will say the hypocrisy bothered me the most. So many times at sporting events there have been politicians maskless and were recorded going to expensive restaurants with several sitting next to each other maskless, going to bars and live music, having political events, going to the hair salon, dropping their kids off at private school, none of them wearing masks.
While the rest of us suffer the restaurant and bar bans, our kids unable to attend school and socialize. Just like everything else, the elites have their own rules and demand us to follow another set of rules.
If it were as deadly and dangerous as they and the media claimed, they would've been taking it much more seriously. That's a fact.
A CNN employee(Chester Charly) admitted and bragged while being secretly recorded that they used covid as "fear propaganda" to suppress votes and manipulate people, to get rid of Trump and to put fear into people. The constant "death toll" and infection numbers on screen 24/7 and using it to twist people with their narratives. The lies, the inflated numbers and "overwhelmed hospitals". My cousin is a nurse. Her and several others I spoke with said that was a lie.
People were silenced and canceled if they spoke the truth or anything other than the political narrative they wanted.
Years and years before Covid, I and my family (including children) would always wear a thick scarf(not yarn, but a felt like material) and though not scientific, we never got sick on our vacations. You should have seen the looks we got from people back then!
Sometimes I notice people who wear masks consistently wear masks that are obviously (visually) not fresh or actually dirty from being worn & handled repeatedly without sanitizing
Between seatings or changed often
Very informative and timely lecture. Greatly appreciate your effort in educating public.
try learning the taxonomy of HCoV-OC43 before deciding who is worthy of praise. If you bothered following a link on the cdc web sight you would have found an australian new zealand mask study 2014 with no significant efficacy, including n95!
My brother's in-laws just flew in from New Jersey last week and gave my brother, his wife and two kids COVID. They think they contracted it from the flight. Luckily everyone seems to have mild symptoms, so that's a relief. That's a big change from when they visited with the mandates in effect and no one got sick. 🙄 Thanks for giving good, evidence-based information!
Guess you didn't actually listen to Dr. Seheult's video...
I agree. My husband contracted Covid in the airplane after returning from Puerto Rico on 4/21. The airplane was packed and not many people wore masks. He had 4 shots of vaccine but still got it.
Was he masked?
@@Snapkrackpop he was jabbed which is the reason
@@billieford9683 so you are saying he was NOT masked because he got vaccinated?
@@Snapkrackpop I have no idea if he was masked or not. Overwhelmingly the people getting this disease have been inoculated.
"He had four shots of vaccine BUT still got it".Why do you sound so surprised he got it?
Vaccines don't stop you from getting covid,they are primarily designed to protect you against serious illness.
After over two years of covid,and so much information,you must know this surely?
Thank you Dr. Seheult. You facts throughout this entire Covid ordeal have been awesome!
Thank you for solidifying my resolve in wearing masks. I have personally found it helpful in not getting sick with a cold or any respiratory diseases since 2020. I haven’t even hardly needed my allergy pills as well. I never realized how much I touched my face until I started wearing masks. I plan to continue mask wearing in public, especially during winter season and traveling for the rest of my life. I think it’s a small thing I can do to keep healthy. I just don’t understand why people get so mad about wearing a mask. You get used to it. I care about the people in my life as well as myself. It’s the least I can do to help safeguard my fellow citizens too.
More bs on masks. Unless your wearing an n95 to protect yourself its pointless. Even wearing an N95 does not stop covid period. Covid is aerosolized. It escapes like marbles through a chicken wire fence. Yes you may stop some covid thats in bigger particles. Big Deal, lets see how smart you are. How many particles of covid need to be taken in to get infected?
Everybody has a choice and can best evaluate (if watching this video then I have a trust you can evaluate quite well) their own risk. However I'm fully vaccinated, had Omicron, and see from various sources that deaths are primarily in the over 70s and/or with underlying health conditions.
In my view for the "average" person with a normal immune system response it is not a bad idea to have exposure. This is not only from a selfish perspective but also more broadly.
From a societal perspective to maintain a good level of immunity within the population and ensure that it remains a low risk level infection for as much of the population as possible (similar to colds, flu) I see as a positive benefit for all.
At the individual level I see the use of vaccine boosters being of value, again similar to flu.
So I do see myself and other healthy people getting low issue viruses/variants such as Omicron (COVID) as a societal benefit also for my fellow citizens.
It is a reasonable request to wear a mask in air conditioned spaces when vulnerable individuals are present. In summer in non air conditioned spaces it isn’t reasonable.
@@juliebrooke6099 nope, masks do not stop covid It takes very little virus particles that are aerosolized to infect a person.Those get through masks easily.
Stop the lies.
The anger isn't all about the discomfort of masks. That is just a distraction from the real problem they create. Faces are hidden, words are muffled, as a society we are more disconnected, and it puts a huge dent in human interaction. A big part of what makes meeting and interacting with others enjoyable is seeing their face in full form
I think a good approach is to wear an FFP3/maximum protection mask during boarding, takeoff & runways; and if it’s a long-ass international flight, switch to a surgical mask once in the air. Easier on the ole mug, too.
As far as I unerstand the unknown issue is internal airflow, vortexes and dead spots that can and do occure inside aircraft fuselages which are full of obstructions such as seats and human bodies. Also, short hall smaller aircraft have their seats much more tightly positioned than the one on your example picture. Many more studies on air flow need to be done.
Superb explanation of the science, as always!
The problem isn't just on the airplane. There's also the issue of people not wearing masks in the airport, where you have to walk through crowds of other travelers from all over. In the scenario you described, there's no way of knowing how many people were infected by that one sick person in the airports before he boarded the plane and after he got off.
I was about to say the very same thing. Typically the genomic sequence doesn't change a lot per generation. The cohort could well have been infected anywhere on their journey to the plane. You really have to go with the only 2 RCTs carried out during the pandemic, the Danish one saying masks made no difference, and the huge Bangladeshi study showed cloth masks offered no protection and surgical masks possibly 11%. Anecdotal and observational studies should not for the basis for policy.
lol
I injured myself in a house fire as a firefighter. Took in a load of smoke and all the other toxic byproducts of combustion that are left behind by petroleum products. As a result I have permanent damage to my airway and sinus cavity. I get daily bloody noses. If I wear a mask for too long I start to get tiggles in my fingers and tightness around my eyes. My vision blurs and I start to loose my balance. If I keep it on after that I will pass out. That happened to me on a flight once and I had to be placed on oxygen for the duration of the flight. The airline accused me of not following covid protocol and sent the TSA to open an investigation on me. Everything was dropped and the airline gave me a voucher but they still kicked me from the flight and left me and my girlfriend stranded in Chicago. The airlines were overzealous and were given far to much power. Private, public, and Healthcare services should never intermix. It's creates a authoritarian beast that targets people indiscriminately and has the potential to ruin lives for things outside the "offenders" (victims is a better word) control.
got the vaccine and accept living come with risk...if too much to bear, keep the mask on for yourself, don't impose your fear on other people...personnally, I'm against the obligation, not the mask, if you are incomfortable, use it, but I follow the rules and got the vaccine...and maybe if we don't have the obligation, people will be more ok, not feeling coerce like kid, to wear it in cramp indoor place by themselves. I got covid right now, and it's a cold, no fever at all, just more tired than usual...I got flu much more worst than what experience now, even surprise people could die from that virus, its so mild its laughable
Yeah, he's drawing a conclusion about mask effectiveness from one very small, non-randomized trial. This is a good trial, but the only reasonable conclusion that should be drawn from it is that mask wearing, both on aircraft and in general should be researched further. Fortunately, other trials were conducted since the time of this study that were both larger and randomized. Those studies determined that, in the case of "Wild-Type", cloth masks are ineffective and surgical masks provide a small benefit.
Thank you very well done. I just took a flight to and from JFK in NYC and as a medical teacher I wore a mask both my wife and daughter traveled with me we removed our masks to eat for a short period of time and all of us came down with an upper respiratory problem within two days from the flight this was not COVID so I 100% agree that one must consider other viruses and it may be common place for me now not to remove my mask for even a short period of time and also consider using an N95 instead of a surgical mask. I always wanted to wear a mask but it seemed socially awkward before COVID but now I have a good reason to wear one.
Poor immune system?
@@libertyfirst4083 absolutely with me but not my 10 Yr old and Wife they are in the best of health with good immune system.
@@jamesnelson2844 Re your 10-year-old and wife, that's great. Could you help me understand how your breathing through a cloth or plastic obstruction helps your immune system? How do the alleged benefits against viral pathogens outweigh the downsides of this practice (well known and documented)?
@@libertyfirst4083 I'm sorry I don't understand the point you are trying to make. As a Medical teacher and someone who spends hours in the operation room every day I use a mask to protect patients from my pathogens. There is no downside to wearing a mask other than being an inconvenience for me and others who wear one. If your point is about freedom I agree with you that no one should mandate that you wear a mask on an airline but if one does their may be a benefit in helping to reduce my exposer to viruses from other passengers who are in close proximity to me.
Maybe u got sick from the mask.
Thank you for the great info. I have a question, what type of 😷 masks? Most masks I see in airplanes are the cloth or the generic blue ones. I see a few KN-95.
The type makes little difference if you are not the index patient. Large clinical trials in hospitals during outbreaks show that ordinary medical masks and N95 respirators resulted in the same number of infections in healthy mask wearers. KN95 is about as good as an ordinary medical mask but with a higher price tag (think of KN95 as a fake N95, CDC once said don't use KN95 if you want 95 but I guess it might depend on the hit and miss of which batch you buy from).
No clinical trials have been tried with cloth masks since no one expects them to have any effect except if the index patient wears one. N95 has extra benefit if you do the full spacesuit garb like they do in COVID-19 wards, the only place where aerosols seem to practically matter.
This was really good and helpful. Thanks.
Doc, You should Be the HEAD of CDC. You makes good sense.
You mention how Omicron and modern variants are more infectious, but also individuals immunity profiles are radically less naive to what these original studies showed. The airplane study shows when the virus was novel, which is quite a bit different than life today.
@@tunneling-nanotubes Times for infection may be very different than for vaccination. At least with available vaccines.
This is a really great update that’s really relevant to the times!!
Excellent presentation !
:)
been saying this from the start, mostly based on my experience living here in japan. every single year for decades everyone masks up during flu season, and flu and colds rip through schools and workplaces every year, following the same pattern. everyone is masked, then some start sniffing, the next day 1/4 are snorting and hacking and most of the rest are sniffing, and the next day i have to shut down rooms or even sometimes whole floors and send everyone home because 2/3 have called in sick with the flu. i learned to sit in a corner in a cross breeze and didn't catch the flu in more than seven years despite sitting hours a day in the same room as others who got it. higher ups just didn't want to know - "opening windows and installing fans costs money, and besides everyone is masked so there's nothing to worry about." literally told every single year that masks work even though every single year a large portion of their masked staff were coming down with respiratory infections.
great idea
Masks help, but they only slow disease down
@@nosuchthing8 no they don't help at all. multiple rct's from before the pandemic, including of medical staff, dentists, and operating theatres, show they make no difference when it comes to respiratory infections. there are some indications they might help reduce bacterial infections in some circumstances. of course with viruses being many times smaller than the bacteria masks only maybe sometimes help with, it's no surprise that they have no effect on viral transmission. there are studies that show masks work, but always only observational studies or lab-sims, no rct's.
@@satoau1 in other words you don't have any studies that show masks don't work. Gday.
@@nosuchthing8 guess again.
before we continue, did you at least read the conclusions of those 2? and do you have any comment on them?
The funny thing was that at certain point through the pandemic people had to keep distance from each other when waiting on line at the Airport for later getting on a plane next to each other leaving no distance at all. Nonsense at all.
my question is when you refer to masks, does that include n95s. While designed for tb do those still sterically hinder the aerosol transmission? Magnitudes better than a regular face mask yes albeit uncomfortable, whats their protection like against aerosols?
N95s or equivalent are best against aerosol transmissions.
Is the air exchange per hour the same as on international flights. Is the outside air 50% of air flow. The airlines like to save money by not bringing in fresh outside air, that costs extra fuel. I don’t think domestic hops take many precautions. I flew Turkish air 14 hours they told me not only did they bring in fresh air but also had ultra violet irradiation along with their hepa filtration.
Looks I was lucky that I instinctively put my grandma on a window seat when I accompanied her on her flights (she insisted she had to visit her friend’s funeral) and directed the ventilator nozzles to blow down in front of our faces…
Also we evidently got lucky in general. Also we wore masks the whole time.
Nanny to premature babies, still wearing my masks and living in quasi-quarantine cuz I care about not killing my charges.
Um, you do know the data says kids DON'T GET COVID, right?
Are there any studies on whether eye protection, ie. eyeglasses, affected risk?
Thank you for this excellent information and advice.
Great video, thanks. I travelled in the week prior to the mask mandate being dropped, and I was surprised to see how low compliance was. Once the first snack or drink came out, half of passengers just kept them off. I suspect we will see minimal change in transmission because compliance was already so spotty.
Thanks! Wearing a mask will be my choice now for all air travel.
This information has been something that I have sought since March 2020, so you can imagine how grateful I am now to have you medical appreciation of the situation. When I was traveling by plane fairly regularly, way back before all the stupid anti-terrorist rules and regulations, there were three things I used to do, one: bring my own 1.5 litre plastic, bought flask of good quality mineral water; 2) a towel to lay on the floor while I stretched and elevated my legs while waiting to change flights on the long 22 hr trip; my antivirus oil which I soaked in a facecloth wet with my mineral water and kept over my mouth and nasal passages for the entire trip. Sure it raised a few eyebrows but I bet that saved me many a URTI and the possibility of Venus thrombosis. The biggest problem for me now is not so much the mask wearing but the supply of drink water on the plane. I feel that the way fluids are transported and used on flights that's that is a great source of contagion. And who knows about the quality. I trust my judgement and not the Flight attendant or the company supplying the water.
Are you discussing an N-95 or simple surgical mask? Something very important that we have all forgotten is that there ARE effective out patient medication regimens for prophylaxis and treatment of the virus. Prevention and then treatment would be a common sense approach to managing this and future outbreaks.
What do people have against face masks? Some people would have you believe that wearing a face mask is as painful as wearing high spike-heeled shoes.
I've been asking myself the same thing since the pandemic started.
People have been primed, or "groomed" (to use a right-wing trigger word), to respond with anger when they see someone wearing a mask. As an example, a newsfox talking head will say, as though they are merely ruminating, that they wonder if children wearing a mask is tantabout to child abuse, and shortly afterward, people are screaming at children & their parents & trying to rip their masks off.
(Waiting now for the "but what about..." trolls)
I think some of the reasons for hating masks is political. I don’t mind wearing a mask. Before vaccine was available, I wore a good quality mask and a clear plastic shield. Both worked. I followed what the nurses wore In hospital. 3 coworker worked next to me with no protection. All 3 died from covid. I never caught it at age of 71. After I got my vaccine, I continue with mask to today but dropped the shield. I have kept all of shields in case it ever get as worse again.
Pretty uncomfortable with glasses, hearing aids, wigs etc. and also if you're a person like me with allergies who has to keep lifting the mask to wipe my nose to stop it getting soggy!
I have my natural immune system so what is need for mask?
I follow all immune boosting recommendation from Dr.Seheult from day one.
I didn't wear it all this time and had asymptomatic infection few times ( I seen it in rise and fall of antibody count ) so I just let my natural system work and learn new virus ...
And when in my country government finally let us all to make natural immunization ( in one period streets where almost completely empty as almost 60% working populatio0n was at home with SARS-2 positive test- of course they automatically did immunized their complete household ) pandemic went to it's end .
We are all descendent of people which survive all kind of really deadly viruses and bacteria ( CFR 30-60% ) so why be upset with 0,5% CFR virus ?
Thank you! Very helpful. As a massage therapist, I am going to require masks if I continue to see people. Spas are not keeping people safe and are not requiring masks, which is really unfortunate. A mask is not political, it is to keep people healthy and my life matters. I should not have to choose between a paycheck and my health, but jobs seem to want to ignore science for a dollar.
Are you using N95 masks?
We have immune systems. Never in the history of time have we lived in this kind of fear. People have been getting sick and building their own defenses for hundreds of years. You would do better focussing on building that.
If you aren’t wearing an N95 it’s completely pointless. Very few people can even handle wearing that kind. Please use your brain and stop being led by fear.
@@mballer of course I am. I have an air filter in my office as well. I am not careless.
@@lesliecooper2261 well said, agree completely
@@alek4811 how disrespectful. covid messed with my immune system. I almost died. Sick of ignorant ppl judging ppl who are led by science. My life matters, and there are a lot of ppl whose immune system failed them.
Masks on a plane. That could be the sequel to Snakes on a Plane.