In a follow-up report on the mumps outbreak at the State University of New York at Geneseo (SUNY Geneseo), school health officials say that as of Thursday, 25 confirmed mumps cases have been recorded.

Mumps virus/CDC
Mumps virus/CDC

Of the total, 15 cases have been reported on-campus, while the remaining ten were off-campus.

The school is located in Livingston County, NY. According to the Livingston County Department of Health, as of Friday, there have been 27 confirmed mumps cases in the county. Health officials say they are working closely with the New York State Department of Health to ensure the health and safety of the residents.

All confirmed cases of the mumps at SUNY Geneseo affected students who had received the recommended two measles/mumps/rubella (MMR) vaccine doses. As seen in recent mumps outbreaks, a second vaccine dose does not guarantee immunity, as strength of the vaccine may wane over time. Also variant strains of the virus could be a factor.

According to the Centers for Disease Control and Prevention (CDC), Mumps is a viral illness that is transmitted by direct contact with respiratory droplets or saliva from an infected person. It is best known for painful, swollen salivary glands that show up as puffy cheeks and swollen jaw.

Boys may also have painful, swollen testicles. Other symptoms include fever, headache, muscles aches, tiredness, and loss of appetite.

There is no treatment, and symptoms usually resolve themselves within a few weeks. Mumps is usually a mild disease in children, but adults may have more serious disease with complications.