THE FOLLOWING IS FROM THE CDC:
Q: I’ve been exposed to someone who has measles. What should I do?
A: Immediately call your doctor and let him or her 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, and
- 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, MMR vaccine or a medicine called immune globulin may help reduce your risk 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 school, hospital, or childcare) until your doctor says it’s okay to return. This will help ensure that you do not spread it to others.
Q: Am I protected against measles?
A: CDC considers you protected from measles if you have written documentation (records) showing at least one of the following:
- You received two doses of measles-containing vaccine, and you are a(n)—
- school-aged child (grades K-12)
- adult who will be in a setting that poses a high risk for measles transmission, including students at post-high school education institutions, healthcare personnel, and international travelers.
- You received one dose of measles-containing vaccine, and you are a(n)—
- preschool-aged child
- adult who will not be in a high-risk setting for measles transmission.
- A laboratory confirmed that you had measles at some point in your life.
- A laboratory confirmed that you are immune to measles.
- You were born before 1957.
Q: What should I do if I’m unsure whether I’m immune to measles?
A: If you’re unsure whether you’re immune to measles, you should first try to find your vaccination records or documentation of measles immunity. If you do not have written documentation of measles immunity, you should get vaccinated with measles-mumps-rubella (MMR) vaccine. Another option is to have a doctor test your blood to determine whether you’re immune. But this option is likely to cost more and will take two doctor’s visits. There is no harm in getting another dose of MMR vaccine if you may already be immune to measles (or mumps or rubella).