00:01
Which is most likely to actually lead to disease or most likely to cause disease.
00:09
And what we're going to look at is opportunistic pathogens in a weakened host.
00:14
In a weakened host, their immune system cannot fight the opportunistic infection.
00:19
And so this leads to a greater chance of having disease.
00:23
In a healthy host, sometimes even though they're opportunistic, in a healthy host, the system will overcome and they don't really stand a chance like carpoise in cancer or in an hiv positive person when they're exhibiting aids symptoms.
00:48
The other thing that we will look at is highly virulent organisms.
00:54
For example, not to bring anybody into a point of sadness, but this whole thing with covid -19, it's extremely virulent and it can spread easily from one person to another person, even though they are perfectly healthy otherwise.
01:17
So we're looking at either choice a or choice d.
01:21
So we have to look at between the two of them, which one is actually the more likely...