U.S. doctors online nowAsk doctors free
A 36-year-old member asked:

What is in measles vaccine and how is it delivered?

1 doctor answer5 doctors weighed in
Dr. Bryan Levey
Pediatrics 28 years experience
Measles virus: Measles vaccine is made from measles virus, but it's altered so that it causes no disease in most, but slight disease in a few (low grade fever and/or rash for 1-2 days). It is delivered via a needle into the tissue that lies under the skin. It stimulates the immune system to make antibodies against the virus, but without having to have the full-blown illness, with all the illness's risk, first.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Marc Grella
Dr. Marc Grella commented
Pediatrics 29 years experience
In the US the measles vaccine is part of the measles/mumps/rubella (MMR) vaccine; all 3 are live attenuated (weakened) viruses. It is administered as a subcutaneous ("subQ") injection at 12-18 months and 4-6 years old (and only to older children if they have not had the primary series).
Dec 21, 2014
Last updated Jul 17, 2017
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.