Bird flu, malaria, plague and West Nile virus are infectious diseases we've all heard of. Find information on these epidemics and more in this section.
What are the definitions of HIV and AIDS terms? Learn about the symptoms and spreading of HIV and AIDS. See more »
If you have HIV, does it mean you have AIDS, too?
A friend of mine told me that just because you have HIV doesn't mean you have AIDS. Is this true? See more »
Can I get AIDS from a mosquito bite?
Can I get AIDS from a mosquito bite? See more »
What is foot-and-mouth disease?
What is foot-and-mouth disease? See more »
How long can a germ live in a room?
How long can a germ live in a room? My son had a friend over, and the friend was coughing all over the house. How long can his germs infect people? See more »
5 Things You Don’t Know About HIV
HIV is a life-threatening disease that causes AIDS. But so many people don't know enough about it. Learn the top 5 things you didn't know about HIV. See more »
Loading more content
Sure, Just One Minute of Exercise Sounds Great, But …
TV Antiheroes Like Cersei and Dexter Enthrall Us. Here's Why
Homemade Hoverbike Takes Its First Flight
See More Headlines »