The U.N. calls for more female voices to lead the global response to the epidemic

Currently, Truvada for PrEP is the only drug approved to prevent HIV, with a monthly price tag near $2,000

Anti-abortion Republicans force the end of a study on mice implanted with human fetal tissue

The media has eagerly turned Amanda Knox, accused of killing her female roommate during sex, into a femme fatale.

Llamas' unique immune systems have intrigued scientists studying COVID-19

Did shady backroom hormone treatments and dirty needles cause a killer outbreak of HIV in the transgender community?

Alabama now lets HIV-positive inmates out on work release -- but de facto segregation of the HIV-positive continues

One fact-checker rated Trump’s claim about Obama “an egregious lie” that was “not even close to true"

The White House told Salon last week that Trump had always tested daily; reports indicate that is not true

After meeting the first Asian American Muppet, we look at others who've joined the inclusive kids TV neighborhood

And nearly half of those infected don't know they have the disease

Pick of the week: Matthew McConaughey and Jared Leto are vibrant in the amazing true story of "Dallas Buyers Club"

U.S. officials say they have no comprehensive way to count those who lose their lives trying to save others

A new law makes California the first state to require that health insurance plans cover home STI tests

Treatments have advanced -- but that doesn't mean discrimination against people with HIV is over