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(Epidemic Parotitis, Parotitis)
Mumps is a viral infection of the salivary glands, especially the parotid glands that run along the angle of the jaw in front of and below each ear. Children between the ages of 5 and 10 are most likely to contract mumps. Being infected once gives you lifelong immunity.
Mumps is most common around the month of March. It usually appears in scattered individual cases, though there are occasional local epidemics among unvaccinated children. It's less infectious than chickenpox or measles. Unvaccinated adults who never had the disease are at much higher risk of complications than children, but mumps rarely causes serious problems.
A vaccine for mumps dramatically reduced the incidence of the disease since its introduction in 1967. In the 1950s, Canada had about 30,000 cases a year. With the advent of the vaccine the number of reported cases dropped by 99%.
Mumps is caused by an organism called a paramyxovirus. It's transmitted via the mouth by tiny drops of saliva from talking, sneezing, sharing drinks, kissing, or coughing. The virus can land on an object that others then handle. Once it's on your hand, there's a good chance it will find its way into your mouth, especially if you're a young child.
Mumps is contagious for about a week before the glands swell, and about 9 days afterwards, so people can transmit it before they know they have it. This is common for most viral diseases.
Symptoms and Complications
Up to one-third of people infected feel no symptoms. Others have a low-grade fever, headache, weakness, fatigue, and loss of appetite starting 14 to 24 days after they are actually infected.
About a day after the onset of fever, the parotid gland near the ear begins to swell and ache – this makes chewing and swallowing painful. The body's temperature rises to 39.5°C to 40°C (103°F to 104°F).
The swelling and tenderness worsens over the next 3 days and may extend forward of the jaw and, for some, down the neck, depending on whether other salivary glands are involved. In the majority of mumps cases, both the right and left parotid glands are swollen. The fever typically lasts only 1 to 3 days but can persist for a week. The swelling of the glands tends to resolve after about one week.
That's usually as far as it goes, even in adults. 1 in 5 adolescent or adult males, however, suffers orchitis, an infection and inflammation of the testicles. This can be very painful, but it almost never results in sterility. Women can get an infection in the ovaries, but it's mild and harmless.
1 in 30 people infected get pancreatitis (inflammation of the pancreas) with vomiting and stomach ache that quickly clears up. A similar number develop hearing problems due to otitis media, which is also a temporary side effect of mumps.
Any viral disease carries some risk of severe complications like encephalitis (brain inflammation) or meningitis (inflammation of the membranes around the brain and spinal cord) during or after the initial infection. The risk of developing encephalitis with mumps is about 1 in 5,000, and for meningitis the risk is 1% to 10%. There is a very small risk of miscarriage in women who get infected while pregnant.
Making the Diagnosis
The blood test to detect mumps is fairly complex and time-consuming. Although any family doctor can recognize most cases of mumps by physical examination, blood testing is done for public health reasons, especially since there are some other viruses that can cause symptoms similar to mumps.
Treatment and Prevention
Mumps is caused by a virus, and we can't cure viral diseases. Fortunately our immune system can deal with mumps, so the treatment for mumps is to wait for it to go away. Eating soft foods and avoiding acidic foods such as orange juice can help cope with the symptoms.
You can fight fever, headache, and muscle pains with acetaminophen* or ibuprofen. Never give acetylsalicylic acid (ASA) to children with a viral infection, as its use in these circumstances is linked to a dangerous condition called Reye's syndrome.
Orchitis (swelling of the testicles) requires bed rest for a day or two. Letting the testicles hang increases swelling, so they should be propped up. A tape bridge between the thighs may help, as may an ice pack wrapped in a towel.
You can easily prevent mumps with the highly safe and effective measles, mumps, and rubella (MMR) vaccine. It is usually given to children after 1 year of age, just when they're starting to lose the natural immunity that is transmitted from their mother prior to birth. Many programs give boosters a few months or years later, usually before a child begins school.
It's recommended that unvaccinated young adults get immunized. Older adults are almost certain to be immune. If you lived as a child with a sibling who had mumps, you can assume you're immune. You can also help prevent mumps by avoiding contact with people who have mumps, washing your hands regularly, and not sharing drinks.
Women who are thinking of getting pregnant and have never had the disease or an MMR shot should be vaccinated before getting pregnant. Talk to a doctor about your options.
All material copyright MediResource Inc. 1996 – 2021. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Source: www.medbroadcast.com/condition/getcondition/Mumps
All material © 1996-2021 MediResource Inc. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
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