ME/CFS and the closely related long COVID could be caused by damage to the brainstem, according to a new scientific theory.

For the second year in a row, the US has surpassed 25,000 whooping cough cases — another sign of the risks of falling vaccination levels.

Long COVID can linger long after the acute infection ends. People report fatigue, brain fog, dizziness, and poor sleep. Many ...

State health officials are going to continue recommending a hepatitis B shot for all newborns within 24 hours of birth despite a new recommendation to contrary Friday by ...

Flu is rising rapidly across the U.S., driven by a new variant of the virus. The Centers for Disease Control and Prevention ...

Gynecologists long viewed bacterial vaginosis as solely a women’s issue — until a study that treated their male partners, too ...

Now that the condition is known to spread sexually, there are steps you and your partner can take to prevent it.

Harvard Medical School researchers have uncovered crucial insights into how an emerging class of antiviral drugs works.

The U.S. Food and Drug Administration has approved Jascayd (nerandomilast) tablets for the treatment of progressive pulmonary ...