Three students have been diagnosed with mumps on the University of Michigan campus in Ann Arbor.
The University Health Service says it's working with various health officials on the situation, including Michigan Medicine, and public health authorities for the county and state.
Symptoms usually go away on their own but serious complications can occur.
"Symptoms may include: swollen and tender salivary glands under the ears on one or both sides, fever, headache, muscle aches, fatigue, loss of appetite, testicular swelling and pelvic pain," according to the University Health Service.
Severe complications can include deafness, brain swelling, spinal-cord covering and, rarely, death, according to the health service.
Symptoms can take 12-25 days to appear after exposure.
Because the mumps virus is transmitted easily through droplets in the air, it is recommended that people practice good hygiene, cover their nose and mouth when coughing or sneezing, and avoiding contact with saliva, according to the health service.
If a person has not received the measles, mumps, rubella -- or MMR -- vaccine or previously had mumps, the health service recommends getting in touch with their health care provider to discuss their needs.