Top vaccine advisers hand-selected by Health Secretary Robert F. Kennedy Jr. voted Thursday to limit the use of a combination shot that protects against measles, mumps, rubella and chickenpox.

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Declining vaccination rates are making more and more U.S. children vulnerable to measles and mumps, a new study says.

A national decrease in MMR (measles/mumps/rubella) vaccinations among American children has occurred since the start of the COVID-19 pandemic, res...

Despite routine use of a childhood vaccine, the United States still sees outbreaks of mumps. Now, a new study reinforces the belief that it's due to waning immunity post-vaccination.

Mumps is a viral infection best known for causing puffy cheeks, a swollen jaw, fever and general misery. While it's usually relatively mild, mumps occasionally causes serious complications like brain inflamma...

Children and teenagers vaccinated against the mumps virus have accounted for one-third of infections in recent years, a new U.S. government study finds.

The reasons are unclear, and experts stressed that routine childhood vaccination remains the best weapon against mumps -- a contagious infection that is usually mild, but can cause serious complications.

After the mumps vaccine was ...