00:01
This problem asks us which of the following is not an emerging infectious disease from the choice of smallpox, hepatitis c, lyme disease, hantavirus, and mad cow disease.
00:13
So first, let's ask ourselves which of these are infectious diseases.
00:17
If one of them isn't infectious, we can eliminate it right away.
00:22
Smallpox is definitely an infectious disease.
00:24
It's caused by a virus.
00:26
So is hepatitis c.
00:27
Lyme disease is caused by a bacteria, but it is infectious.
00:30
It's transmitted by ticks, though, so it's not spread person to person, but still counts as infectious.
00:36
Haanta virus is obviously a virus and is definitely infectious.
00:40
Mad cow disease is the only tricky one here because it's caused by a prion...