00:01
So this question is essentially asking us, how do emerging viruses arise? now, quick review of emerging viruses.
00:19
The textbook seems to be a little short on its definition, but according to the world health organization, essentially emerging viruses are defined as viruses which, are, you know, first appearing, in other words, new, or viruses, i'm sorry, got the question mark, or viruses that are either spreading further within a population, post population, i should say.
01:07
In other words, like, if a virus were to be, we already know about a virus dogs can suffer from, and suddenly more dogs are suffering from it, that would be considered, you know, spreading further within the host population, it would be emerging virus, or that are spreading further within a host population or across a geographical range.
01:41
I think the most famous emerging virus, you know, nowadays is covid because, you know, first appearing, you know, never been seen in this population before, in humans before, or at least this strain of it hasn't.
01:56
And it's spread, it's all over the world now.
01:59
You know, it started in, you know, china and it's now everywhere.
02:04
So that is, you know, the definition of an emerging virus.
02:07
Now, how do emerging viruses arise? we're given four options here...