This is some really good stuff. I find the more I learn from your lectures, the better I am able to critically analyze the constant barrage of information, and I use that term loosely, being put out.
I really liked the video. You have a tendency to clear up foggy subjects so I was hoping you explain for me the differences between day and daytime. Are they interchangeable terms? Nonetheless, keep up the great work.
I was also curious about this, but it didn't really give the reason why just that the envelope was required. So I looked it up and it turns out that the functional markers and receptors that recognize the host cell are located on the envelope. Also the envelope is made of glycoprotein and lipoproteins which explains why they break down easier.
Can a virus spread simply through normal breathing like it can from sneezing and/or coughing? The amount of people out there that are completely clueless about how a virus works is too damn high!!!
Yea, viruses spread through water droplets in your breath. Ever breathe into a scarf and notice how it gets uncomfortably wet? That's why there's the 6 feet apart as normal breath doesn't spread very far.
I don't understand how a virus that does not have any ability to control it's movements ends up connecting to the exact right spot on the exact right cell that it needs to connect to. If a virus is inhaled and then goes to the lungs, how does it find the right spot to attach to on cells in there? Also, after a virus takes over cells and then comes out and spreads to other cells through the blood, I assume, how does the blood carry it to the right place? Do viruses float or sink in blood? Do they get carried by anything in the blood or even blocked by other objects in the blood? How does the corona virus find the ace 2 receptor to attach to on a surface of a cell? Are there many receptors on each cell and does it just accidentally get carried to the ace 2 receptor?
There are many, MANY receptors on all cells. How do you think they communicate with each other> And it's not just a single virion of a specific species - in cases with a novel virus (COVID-19, anyone?), or even in known viruses, there can be hundreds or even thousands of virions taken in by the body - the viral dose. These then drift into their target zone, where they bind to the cells' MANY receptors and initiate the infection.
Since almost 4 years I'm looking for a successful experiment where a virus was passed on from one person to another. The latest one the SARS-CoV-2 human challenge from the Imperial College did not even had a control group. Do you know one?
Alright! Thank you for this. There are so many misconceptions about viral transmission, glad you're educating everyone about it
And.... here you are again...
Bro you're omnipresent at this point.
This is some really good stuff. I find the more I learn from your lectures, the better I am able to critically analyze the constant barrage of information, and I use that term loosely, being put out.
"Let's spread some viruses"
You know it when Professor Dave has had enough.
satan confirmed
I love your channel!! I am a chemical engineering student who has benefited a lot from your channel. Greeting from Albany, NY.
Yay, new educational video from Dave
This is very clearly explained!🙂 thanks Prof. Dave!
Professor Dave is best
Every time I see ur video I love ur intro
Very informative, thanks Dave
Preciate it Dave!
I really liked the video. You have a tendency to clear up foggy subjects so I was hoping you explain for me the differences between day and daytime. Are they interchangeable terms? Nonetheless, keep up the great work.
Thank you! I look forward to your videos and I finally know why naked viruses are hardier than enveloped
I was also curious about this, but it didn't really give the reason why just that the envelope was required. So I looked it up and it turns out that the functional markers and receptors that recognize the host cell are located on the envelope. Also the envelope is made of glycoprotein and lipoproteins which explains why they break down easier.
Can a virus spread simply through normal breathing like it can from sneezing and/or coughing? The amount of people out there that are completely clueless about how a virus works is too damn high!!!
Yea, viruses spread through water droplets in your breath. Ever breathe into a scarf and notice how it gets uncomfortably wet? That's why there's the 6 feet apart as normal breath doesn't spread very far.
Thank you for clear explanation
Well explained teacher
I don't understand how a virus that does not have any ability to control it's movements ends up connecting to the exact right spot on the exact right cell that it needs to connect to. If a virus is inhaled and then goes to the lungs, how does it find the right spot to attach to on cells in there? Also, after a virus takes over cells and then comes out and spreads to other cells through the blood, I assume, how does the blood carry it to the right place? Do viruses float or sink in blood? Do they get carried by anything in the blood or even blocked by other objects in the blood? How does the corona virus find the ace 2 receptor to attach to on a surface of a cell? Are there many receptors on each cell and does it just accidentally get carried to the ace 2 receptor?
Well it doesn't "find" anything, it just drifts and collides with things, just the way that molecules collide with one another to react.
There are many, MANY receptors on all cells. How do you think they communicate with each other> And it's not just a single virion of a specific species - in cases with a novel virus (COVID-19, anyone?), or even in known viruses, there can be hundreds or even thousands of virions taken in by the body - the viral dose. These then drift into their target zone, where they bind to the cells' MANY receptors and initiate the infection.
Thanks Dave. ❤
Who’s disliking this video??? I see two people disliked it! Are you pro virus?!? Lol
No, they probably are flat-earthers or some kind of believers with the similar nonsensical beliefs.
Some people believe that viruses don't exist
Anti vaxers and such don't believe that viruses are even a thing. Probably one of those idiots.
Since almost 4 years I'm looking for a successful experiment where a virus was passed on from one person to another. The latest one the SARS-CoV-2 human challenge from the Imperial College did not even had a control group.
Do you know one?
Thanks again
"Lets spread some viruses"
Covid19:it's free real estate!
Dave is there an oxidizing molecule that or a protein that quickly brakes down the virus? I know that more of a biological processes but just asking .
Ozone. Nasty stuff for biological things.
Hello Sir, How can we protect ourselves from viruses?
"If you are a living organism,"
Well, that rules me out!
You know what cleanliness is next to
Sir plz do live chat..
you forgot a major one: 5g
jk
Damn viral jokes
Bad dad jokes are always virile...
@George xeno true
Hi Professor David👋👋
Am the second viewer 😄😄😁
Nice haircut!
Earlier than Karen at the airport