Topic Overview
What is measles?
Measles is a very contagious
infection that causes a rash all over your body. It is also called rubeola or
red measles. It is very rare in the United States because most children get the
vaccine as part of their regular childhood shots.
What causes measles?
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.
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.
It
usually takes 8 to 12 days to get symptoms after you have been around someone
who has measles. This is called the incubation period.
How is measles diagnosed?
Your doctor will ask
you about your symptoms and examine you. If your doctor suspects that you have
measles, he or she will do a blood test that will tell if you have
measles.
If you think you have measles, call your doctor so he or
she can report the illness to the local health department.
How is it treated?
Measles usually gets better
on its own. Most people can treat their symptoms at home. For home treatment,
take medicines to lower your fever. Also, get plenty of rest and drink lots of
fluids. Stay away from other people as much as you can so that you don't spread
the disease.
Most people get better within 2 weeks.
Can measles be prevented?
The measles vaccine
protects against the virus. The vaccine is usually given during childhood with
the mumps and rubella (German measles) vaccines (MMR) or with the mumps,
rubella, and chickenpox (varicella) vaccines (MMRV).
Some parents
are afraid to give their child the MMR vaccine because they have heard that it
can cause
autism. But researchers have done many large studies
and have found no connection between the MMR vaccine and autism.1
Getting your child vaccinated is important, because measles can sometimes
cause serious problems such as
pneumonia. And in rare cases, it can even cause
seizures or
meningitis.
If you have been exposed to
measles and you have not had the vaccine, you may be able to prevent the
infection by getting a shot of
immune globulin (IG) right away. Babies who are
younger than 12 months, pregnant women, and people who have
impaired immune systems that cannot fight infection
may need to get immune globulin if they are exposed to measles.
If
you have had measles, you can't get it again. Most people born before 1957 have
had measles.
Frequently Asked Questions
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