Is casual sex, without protection, with one or multiple partners, something that you do often? You may end up with a sexually ...

Feb. 10-16 is SexPlus Week — here's what seniors should know about staying safe while having an active sex life.

The first known case of HIV-1 infection in human was detected in 1959, from a blood sample of a man in Kinshasa, Democratic ...

Pneumonia is swelling (inflammation) of the tissue in one or both lungs. According to the NHS, it's usually caused by a ...

One Catholic leader in Africa says U.S. President Donald Trump’s pause in foreign aid shows he doesn’t accept it as a tool of ...

Preexposure prophylaxis, known as PrEP, reduces the risk of new HIV infections through sex by 99% and among injectable drug ...

The head of the U.N. AIDS agency says the number of new HIV infections could jump more than six times by 2029 if U.S.

Yahoo News provides the latest updates on the spread of bird flu in the U.S., and its effect on rising egg prices and ...