Find out more about the signs and symptoms of HIV infection, the causes of HIV, and how HIV causes AIDS.
Learn about early and late symptoms of HIV and AIDS.
HIV is a virus, like a cold or the flu -- but it doesn't spread the same way. You can only get it when certain fluids from someone who's infected get into your body.
HIV is a virus. It causes AIDS, the disease you can get after the virus has infected your body and weakened your immune system. Not everyone who has HIV will get AIDS, though.