Harvard now has a total of six mumps cases, the university reported in a memo to the campus community.
Individuals who have previously had mumps are considered immune to the virus. However, those who have been vaccinated for mumps—though much less likely to contract the virus—can still be infected. If you are unsure whether or not you have been vaccinated, you should contact your health care provider.
On Monday, Harvard reported the first two cases of the infection, in an undergraduate student and in a graduate student at the divinity school. Today's memo identifies the new cases as being among students, but does not identify which type.