Mumps continues to spread at the University of Texas.

According to Forbes:

Four New Mumps Cases Diagnosed In Outbreak At University of Texas at Austin

Another four cases of mumps were diagnosed on the campus of the University of Texas at Austin, bringing the total number of cases in the university outbreak to seven. The Travis County Health Department notified the University of the four new cases yesterday afternoon.

The first case in the outbreak was diagnosed May 6 following lab testing that confirmed a university physician’s suspicions. Since then, the university has been working with the count and state health departments to test others with symptoms of the viral illness and allow tracing back of their contacts to identify others at risk.

“We feel like this is still relatively isolated, and we anticipated and expected to see another few cases,” said Dr. David Vander Straten, the medical director of University Health Services. “I don’t think we’re necessarily out of the woods yet because the incubation can be up to 25 days.” The incubation period refers to how long an individual may be infected with the virus before symptoms appear.

Symptoms of mumps typically include a fever, tiredness, aches, and the tell-tale swelling of the parotid (salivary) glands (for which the disease was named), which can make it difficult to eat, said Dr. Mary Healy, the director of Vaccinology and Maternal Immunization at the Center for Vaccine Awareness and Research at Texas Children’s Hospital. Mumps spreads easily among those without immunity because it’s transmitted through saliva and secretions from the respiratory tract, she said.