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Measles

Measles is a highly contagious viral disease that at one time affected nearly everyone before the age of 20. But with the development of a vaccine and widespread immunization, measles has become a very rare disease in the United States. Although measles remains a relatively rare disease in this country, there has been a recent upsurge in cases reported. These cases are occurring in children and adults who have not been vaccinated or have been incompletely vaccinated against measles.

The main reason that there has been an increase in the number of cases of measles is that some parents are concerned that the measles vaccine – usually combined with the mumps and rubella (MMR) vaccine– may cause autism. Large studies have shown no connection between the MMR vaccine and autism, and the risks and complications associated with contracting measles can be very serious.

How is measles spread?

Measles is caused by a virus that is spread by contact with droplets from the nose, mouth, or throat of an infected person. Symptoms of measles usually do not appear until 8-12 days after coming into contact with the virus.

What are the symptoms of measles?

The most common symptoms associated with measles include high fever, a barky cough, red or bloodshot eyes, runny nose, followed by a red rash, which starts at the head and then spreads downward. Other symptoms of measles include:

  • Sore throat
  • High fever
  • Muscle pain
  • Sensitivity to light

There are many complications associated with measles. Some of the complications are very serious and occur most frequently in babies or adults who contract the disease. These include ear infections, bronchitis, and pneumonia. However, the most serious complication associated with measles is encephalitis, an infection of the brain. Encephalitis can lead to convulsions, hearing loss, and mental retardation, and affects approximately 1 of every 1,000 children infected with measles. Despite advances in medicine, measles can still occasionally be fatal because of these complications.

How is measles treated?

There is no treatment for measles. Once a person is infected, the virus must run its course (usually 10 to 14 days). Bed rest, acetaminophen, and other medications are often recommended or given to help treat symptoms.

What is the prognosis for measles?

The outcome for most cases of measles is excellent. Once the disease passes, the person will be protected against contracting it again. In cases where there are severe complications, the chances of long-term problems are less certain and vary on a case-by- case basis.

When should my child be vaccinated for measles?

The MMR vaccine is often given in two shots. The first shot is given around the age of 12-15 months, and the second around 4 or 5 years of age. If a child has not been immunized, measles can still be prevented by receiving the vaccine within three days of exposure to the virus. As previously mentioned, concern about the vaccine causing autism is unwarranted, and all children should be immunized against measles.

Is there anybody who should not receive the MMR vaccine?

The measles vaccine should not be given to pregnant women, or to people who have leukemia, lymphoma, or a depressed immune system.

References

Centers for Disease Control & Prevention. Overview of Measles Disease. www.cdc.gov Accessed 6/24/2011

Ohio Department of Health. Measles. www.odh.ohio.gov Accessed 6/24/2011

© Copyright 1995-2011 The Cleveland Clinic Foundation. All rights reserved.

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This information is provided by the Cleveland Clinic and is not intended to replace the medical advice of your doctor or health care provider. Please consult your health care provider for advice about a specific medical condition. This document was last reviewed on: 6/22/2011...#8584