Health officials at Harvard University say there are two confirmed cases of mumps at the school.
According to Dr. Paul Barreira, Director of Harvard University Health Services, the two cases were confirmed on Thursday.
Those infected have not been identified but Harvard officials said one person has a connection to the BioLabs complex.
"Colleagues who have been in that facility recently are urged to take special note of this alert, though it is of importance to our whole community," said Leslie Kirwan, FAS Dean for Administration and Finance, in an email.
The letter sent by Barreira stated that individuals who have previously had mumps are considered immune to the virus. Those who have been vaccinated for mumps, however, can still contract the infection.
"If you are experiencing any symptoms of mumps — facial swelling, jaw pain, earache, or testicular swelling — or if you think you may have been exposed, we advise you to refrain from public activities, avoid travel and public transportation, and contact Harvard University Health Services or your primary care provider to be evaluated," said Barreira.
The state Department of Public Health and the Boston Public Health Commission are investigating the origin of the infections.