Why mumps has resurfaced in the US
The MMR vaccine, given in two doses to children, protects against the measles, mumps and rubella. Yet the United States and Europe have seen more than a few outbreaks of mumps, a contagious viral disease, in the past couple of years. This resurgence may be due to waning protection bestowed by the mumps portion of the vaccine, according to a new study published in the journal Science Translational Medicine. A simple booster shot at age 18 could thwart future outbreaks, the Harvard researchers believe.