I’ve been exposed to someone who has measles. What should I do?

If you know you have been exposed to someone with measles, call Public Health at 530-552-3929. Additionally, you can call your Healthcare Provider and let them know that you have been exposed to someone who has measles. Your doctor can:

  • Determine if you are immune to measles based on your vaccination record, age, or laboratory evidence
  • Make special arrangements to evaluate you, if needed, without putting other patients and medical office staff at risk

If you are not immune to measles, the MMR vaccine or, for persons at high risk for measles complications, a medicine called immune globulin may help reduce your risk of developing measles. Your doctor can help to advise you and monitor you for signs and symptoms of measles.

If you do not get MMR or immune globulin, you should stay away from settings where there are susceptible people (such as schools, hospitals, or childcare facilities) until your doctor says it's okay to return. This will help ensure that you do not spread measles to others.

Show All Answers

1. How do I know if I am fully vaccinated?
2. What are the signs and symptoms of measles?
3. Have there been Measles cases in the United States and in California in 2019?
4. How is measles transmitted?
5. I’ve been exposed to someone who has measles. What should I do?
6. I don’t know if I was exposed, but I am concerned that I may have been, what should I do?
7. Am I protected against measles?
8. I only received one dose of measles vaccine, am I protected?
9. What should I do if I’m unsure whether I’m immune to measles?
10. Where can I get the Measles Vaccine?
11. How effective is the measles vaccine?
12. Could I still get measles if I am fully vaccinated?
13. Do I ever need a booster vaccine?
14. If measles is eliminated from the Americas, why do people still get it in the United States?