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Mumps is spread from person to person by droplets sprayed from the respiratory tract of infected persons, and it is highly contagious. The incubation period of the disease varies from 15 to 21 days.
This is called the incubation period. Some people who are infected with the mumps virus don't have any symptoms. If you have more serious symptoms, such as a stiff neck or a severe headache, painful testicles, or severe belly pain, call your doctor right away.umps is a contagious viral infection that can cause painful swelling of the salivary glands, especially the parotid glands (between the ear and the jaw). Some people with mumps won't have gland swelling. They may feel like they have a bad cold or the flu instead. Mumps usually goes away on its own in about 10 days.