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PHILADELPHIA (CBS) — Temple University has issued a warning after four students tested positive for mumps. Overall, 11 students have mumps symptoms.

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The university sent out a notice to students and staff about the highly infectious disease on Thursday. Temple’s spring break begins after classes are done for the day Friday.

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Mumps is passed through saliva and respiratory secretions and symptoms often appear 16 to 18 days after exposure.

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“People with mumps are considered infectious from two days before swelling begins through five days after the start of swelling,” the university said.

Symptoms are similar to the flu, and can include tender swollen glands below the ear and along the jawline, headache, fever and cold-like symptoms.

“There really is no treatment. All we can do is treat the symptoms that they’re having. It’s similar we do for the flu – Tylenol and Motrin for the swelling, rest, plenty of fluids, and really advising them to self-isolate themselves for five days after the onset of symptoms, so avoid contact with other people,” said Mark Denys, the director of student health services.

To take precautions against the mumps, cover your mouth when coughing or sneezing, wash your hands frequently and efficiently, avoid sharing food and drinks, and stay home from school or work.

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If you are experiencing symptoms, contact StudentHealth@temple.edu.