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Measles cases in the United States often begin with an unvaccinated international traveler. Typically, two out of three of those travelers are Americans. Measles is extremely contagious: up to 9 out of 10 unprotected people who come into close contact with someone who has it will be infected. It remains common in many parts of the world, including Europe, the Middle East, Asia and Africa, and kills an estimated 128,000 people a year. Many countries and popular destinations have had outbreaks in recent years.
You're at risk if you haven't been fully vaccinated or had measles, and you travel abroad or to a place where measles is spreading. Everyone traveling internationally should be fully vaccinated first, whatever the destination.
Get the MMR vaccine before you go
The measles, mumps and rubella (MMR) vaccine is the best protection, for all three diseases.
| Doses | Protection against measles |
|---|---|
| Two | 97% |
| One | 93% |
- Plan to have both doses at least 2 weeks before you leave.
- Already had one dose? Get the second before your trip.
- Trip less than 2 weeks away and not protected? Still get a dose.
Call your doctor or local health department, or find a clinic.
Who needs what
| Traveler | Doses |
|---|---|
| Infants under 6 months | not recommended |
| Infants 6–11 months | an early dose now — then the usual doses at 12–15 months and 4–6 years |
| Children over 12 months without evidence of immunity | first dose now, second 28 days later |
| Teens and adults without evidence of immunity | first dose now, second 28 days later |
Evidence of immunity means at least one of: written proof of adequate vaccination; lab evidence of immunity; lab confirmation of past measles; or birth before 1957.
If you're sick, don't travel
Call your doctor right away if you think you or your child has been exposed to measles.
After you come home
Watch your health for 3 weeks. Measles spreads through coughs and sneezes, and an infected person can pass it on from 4 days before the rash appears to 4 days after.
Call your doctor immediately if you or your child gets a rash and fever. Say that you traveled abroad, and whether you've had MMR. Measles usually brings:
- high fever — it can spike above 104°F
- cough
- runny nose
- red, watery eyes (conjunctivitis)
- a rash, 3–5 days after the first symptoms
Why it matters at home
When unvaccinated travelers bring measles back, it can spread fast to anyone who isn't protected, and sometimes sparks outbreaks. Protect yourself, your family and your community with MMR — especially before traveling abroad or to a U.S. area with an outbreak. Before any trip, check CDC's travel notices.
Sources
Based on "Plan for Travel," Centers for Disease Control and Prevention; a work of the United States government in the public domain. A stock photograph is left out.
Licencia: CC0 1.0 (dominio público) · Adaptado de www.cdc.gov
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