The flu vaccine is recommended annually for all Americans 6 months and older, per the Centers for Disease Control and Prevention — but a new study from Cleveland Clinic suggests that it might ...

The new vaccine should provide some protection to everyone. But many healthy people who have already been vaccinated or have immunity because they've been exposed to COVID enough times may want to ...

Health and Human Services Secretary Robert F. Kennedy Jr. said the measles vaccine is "leaky" because its effectiveness wanes over time, something medical experts dispute. Kennedy, a vaccine ...

Before the measles vaccine was introduced in 1963, it is estimated that 3 to 4 million people in the U.S. contracted measles every year, causing 500 deaths and 48,000 hospitalizations annually ...

Yet unlike other commonplace infections such as seasonal flu and COVID, no vaccine exists to help people avoid being sidelined by norovirus, a notoriously transmissible and resilient virus that is ...

There is no antiviral treatment for the miserable but thankfully short-lived illness, and no vaccine—yet. But scientists at Moderna are in the late stages of testing what could be the first such ...

A girl with polio meets one of the first children to get a polio vaccine. Bettmann/Getty Images By Elena Conis Graphics by Sara Chodosh and Aileen Clarke Dr. Conis is a historian of medicine and ...