So, let’s say that this guy has the flu, could be any flu and here’s a droplet from his sneeze containing.
If we move and take a really close look, each one of those little purple things is a virus.
And there are a lot of viruses floating through the air.
Some of which go inevitably up this unlucky man’s nose.
“How do that guy feel when he lifted up his face?”
“It was interesting because we did it while he was sleeping.”
OK, I am talking with medical illustrator David Bolinsky who designed this video for virus, a research company.
So here comes the virus and it’s good land on one of this guy’s throat cells.
So notice it’s covered with little yellow nobby things, you call these keys right?“
Those are the keys.
This is a key, this is a key, this is a key.”
Ok, if the keys on this virus happened to fit the locks which are those little purplely stick up things on the surface of the cell.
If there is a match the cell, watch this, welcomes the virus in and what’s this?
“This is a welcoming community.
They all interlock with each other and they pull this membrane down into the cell…”
And down it goes deeper and deeper and that welcoming structure disperses and the virus capsule bursts and outcomes the secret recipe for how to make more viruses in those little noodly things.
So this unsuspecting cell has been tricked into guiding these virus recipes right into its own command center the nucleus.
So in they go….
“And they are immediately recognized by this big pink molecule which is a mini factory.”
“And what is it doing?”
“It threads the nuclear material, the instruction code of the virus through one hole and out another hole comes a brand new instruction set…”
So, it’s a copying machine making copy after copy after copy of virus recipes which then go out of the nucleus to little chefs, those blue peanuty things.
They cook up proteins that go back into the nucleus where they are reassembled into baby viruses and then out.
They go they get covered up and head to the surface where they get new keys and then boom!
Here they come.
This is an eruption of virus after virus after virus after only one virus entered this cell.
But how many came out?
Well, millions, millions.
So if one virus can produce a million babies and do it again and again and again how come this guy doesn’t just drop dead.
I don’t know where like ten minutes?
“Well, because you have about a hundred trillion cells…”
I see, so a million viruses is just a drop in the bucket when you have a hundred trillion cells
Anyway, remember you do have your own immune system which when it sees a virus usually, kills it.
So while the virus does multiply fast with any lack your immune system will work just a little faster.
So, yes viruses all viruses want to spread that’s what they do.
But most of the time we do keep them in check.
Most of the time…