A new virus has been found to be transmitted through blood transfusions, but it doesn't seem dangerous.

Drug prices are higher than ever, with the cost of daraprim recently increasing by 5,000 percent overnight.

The best-seller list of pharmaceutical drugs includes treatments for pain, depression, diabetes, and cholesterol, yet also unexpected orphan diseases.

Truvada, manufactured by Gilead, appears to be working in individuals at high risk of infection, found two new studies.

A health clinic in London has accidentally exposed the identities of nearly 800 members of its HIV clinic — an error that could have serious repercussions for those affected.

A 25-year-old program named for Ryan White, who was expelled from school at age 13 because he had HIV, now provides essential services to nearly three-quarters of HIV-positive patients in the U.S.

Gilead Sciences Inc said its experimental fixed-dose combination treatment for HIV proved as effective in a late-stage study as the company's widely used Truvada combo pill but with significantly less loss of bone mineral density and kidney function this past Wednesday.

Hormonal birth control methods may weaken the immune system in women who already have an unset vaginal environment, and they could further increase women's risk of HIV.

The reasons why people are dying early across the world may surprise you.

For all the caped crusaders out there.

Mens' physically abusive and sexually coercive behavior subjects both themselves and their partner to greater sexual risk.

Using new technology, researchers were able to analyze how a mysterious immune cell ties into susceptibility to HIV.