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About 1.2 million Americans are living with HIV - but about one in five of them don't know they're infected

Doctors are allowed to prescribe Truvada "off-label" for HIV prevention, but FDA approval would allow the pill's maker Gilead Sciences to market it for that use

Experts estimate one-fifth, or about 240,000 people, of the 1.2 million HIV carriers in the U.S. are not aware of their status

The FDA is considering the use of Truvada for healthy people to prevent the contraction of HIV. Dr

FDA panel backs a drug already being used to treat AIDS patients; Used correctly, it can reduce HIV infection risk in healthy people

Wrong information and lack of technology makes contracting TB especially deadly in areas affected with HIV and AIDS, according to NGO Project Hope

Image courtesy of iStockphoto/sjlocke The number of people who die from HIV-related causes each year in the U.S. is now down to about 12,700 from a peak of more than 50,000 in the mid-1990s thanks to condom education and distribution campaigns, increased testing and improved treatments.

Life-threatening viruses such as HIV, SARS, hepatitis and influenza, could soon be combatted in an unusual manner as researchers have demonstrated the effectiveness of plasma for inactivating and preventing the replication of adenoviruses.

In event to mark World AIDS Day 2011, president announces ambitious new effort to curb HIV/AHDS in U.S., world

New recommendations from health officials suggest immediate treatment for city's 110,000 HIV patients

HIV/AIDS called "mildly prevalent" in China, with most cases spreading via heterosexual sex

Researchers end clinical trial after gel proves no better than placebo at protecting women against HIV/AIDS

Number of newly infected people with HIV remains unchanged since 2007, report said

Twenty years ago, basketball legend Earvin "Magic" Johnson announced he was HIV- positive. Sports Illustrated senior writer Jack McCallum spoke to the "Early Show" anchors about Johnson's battle with the disease.

CBSNews.com's Ken Lombardi speaks with Alicia Keys, Tyra Banks, David Arquette, and Richie Sambora about Keys' charity, Keep A Child Alive, and it's 2011 Black Ball for stars to raise funds for children affected by HIV and AIDS in India and Africa.