What is Mumps?
Mumps is a contagious disease that is caused by the mumps virus. Most people with mumps will have swelling of their salivary glands, which causes the puffy cheeks and a tender, swollen jaw. Other symptoms may include fever, headache, muscle aches, tiredness, and loss of appetite. Symptoms usually appear about 16 to 18 days after being exposed to someone who was contagious.
Mumps virus spreads in the air from an infected person’s cough or sneeze. A child also can get infected with mumps by coming in contact with an object, like a toy, that has mumps virus on it. An infected person is most likely to spread mumps one to two days before symptoms of swollen glands appear. Infected people can spread mumps for up to five days after symptoms appear.
Complications can occur and might be more severe in teenagers and adults. Mumps can cause inflammation of the brain (encephalitis), inflammation of the tissue covering the brain and spinal cord (meningitis), deafness, inflammation of the testicles (called orchitis), inflammation of the ovaries (oophoritis), and, in rare cases, death.
About one out of three people with mumps may have no symptoms, or symptoms may be very mild.
Who gets Mumps?
Anyone who is not immune from either previous mumps infection or from vaccination can get mumps.
Before the routine vaccination program was introduced in the United States, mumps was a common illness in infants, children, and young adults. Because most people have now been vaccinated, mumps has become a rare disease in the United States.
Mumps outbreaks can still occur in highly vaccinated U.S. communities, particularly in close-contact settings such as schools, colleges, and camps. However, high vaccination coverage helps to limit the size, duration, and spread of mumps outbreaks.