A planned U.S.-funded study of a hepatitis B vaccine drew widespread condemnation from researchers. Now the host country says it cannot proceed.

Amid a surprisingly severe flu season and a COVID-19 resurgence, those highly contagious respiratory illnesses are drawing ...

At the end of 2022, the last year for which CDC data was publicly available, there were 135,400 people living with HIV in ...

Although adolescents and young adults comprise only one quarter of the sexually active population in the United States, approximately half of new sexually transmitted infections (STIs) are diagnosed ...

With RSV cases on the rise, an Annenberg survey finds most Americans would be likely to recommend the RSV vaccine to older adults and pregnant people and the monoclonal antibody injection for infants.