In short, vaccines are the best way to prevent spreading the measles, and even those not vaccinated as children are able to get the shots. There's also no need for follow up immunizations, as the measles-mumps-rubella vaccine is good for life, according to the Centers for Disease Control and Prevention.
Measles is an extremely contagious illness caused by a virus that spreads through the air. It mainly infects children, causing a red spotted rash and fevers as high as 104 degrees, but it can also infect adults. There is no cure for measles.
Here's what else you should know:
Do I need a booster vaccine?
No. People who received the two recommended doses of the measles vaccine as children are protected for life, according to the CDC.
How effective is the vaccine?
The measles two-dose vaccine is 97 percent effective against the virus, according to the CDC.
I never received the measles vaccine as a child. Can I get one as an adult?
Yes. Adults who haven't been vaccinated should get at least one dose of the MMR vaccine, the CDC recommends. Adults who are at high-risk for exposure, including college students and international travelers, are advised to get two doses.
Can I get measles even if I was vaccinated?
Yes, but it's rare. Health officials estimate about three out of 100 people who get two doses of the vaccine will still get measles if exposed to the virus, health officials estimate.
I had measles. Do I need a vaccine?
No, if you were infected by measles, mumps, or rubella in the past, you are immune, according to the CDC. Most people born before 1957 are considered immune, because largely everyone was infected at that time, when vaccines were not available.
How contagious is it?
Measles is so contagious that 90 percent of unvaccinated people who come in contact with an infected person will get the virus. The virus can linger in the air for up to two hours after an infected person coughs or sneezes. The virus can spread four days before and after symptoms appear.
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This article originally appeared on USA TODAY: I’m an adult worried about measles. What do I need to know?