Health department officials say at least 38 cases of mumps have been confirmed at Temple University.
The Department of Public Health for Philadelphia said the effectiveness of the mumps vaccination tends to wane over time so it’s not necessarily a case of unvaccinated people.
Spokesman James Garrow says the outbreaks tend to be more common on college campuses where people are more closely in contact.
There are nearly 40 Temple-related mumps cases as of Thursday.
Eleven cases have been confirmed, and there are 27 probable cases, Jim Garrow, the director of communications for the Philadelphia Department of Public Health, wrote in an email to The Temple News. Three of the 38 cases are from surrounding counties.
By Kelly Brennan