Measles is a very contagious
(easily spread) infection that causes a rash all over your body. It is also called rubeola or
The measles vaccine
protects against the illness. This vaccine is part of the MMR (measles, mumps, and rubella) and MMRV (measles, mumps, rubella, and varicella [chickenpox]) vaccines. Most children get the vaccine as part of their regular shots. This is why measles is rare in the United States and Canada.
Did You Know?
Under the Affordable Care Act, many health insurance plans will provide free children’s preventive care services, including checkups, vaccinations and screening tests. Learn more.
Measles is caused by a
virus. It is spread when an infected person coughs, sneezes, or shares food or
drinks. The measles virus can travel through the air. This means that you can
get measles if you are near someone who has the virus even if that person
doesn't cough or sneeze directly on you.
You can spread the virus
to others from 4 days before the rash starts until 4 days after the rash
appeared. The virus is most often spread when people first get sick, before
they know they have it.
you have had measles, you can't get it again. Most people born before 1957 have
What are the symptoms?
The first symptoms of
measles are like a bad cold—a high fever, a runny nose, sneezing, a sore
throat, and a hacking cough. The
lymph nodes in your neck may swell. You also may feel
very tired and have diarrhea and red, sore eyes. As these symptoms start to go
away, you will get red spots inside your mouth, followed by a
rash all over your body.
When adults get
measles, they usually feel worse than children who get it.
usually takes about 7 to 18 days to get symptoms after you have been around someone
who has measles. This is called the incubation period.
How is measles diagnosed?
If you think you have measles, call ahead and explain your symptoms before you go to a doctor's office.
After you've had an exam, your doctor may order a blood test and/or viral culture if he or she suspects that you have measles.