5 doctors weighed in:

How are the first MMR vaccine, and the second dose. Distinguished from each other?

5 doctors weighed in
Dr. Marybeth Lambe
Travel Medicine
4 doctors agree

In brief: Doses are same but:

About 5% of people don't respond to 1st dose of mmr.
The reason for the second dose is to catch those non responders & give them a chance to develop an immune response to measles, mumps and rubella too. It also appears that seeing the MMR vaccine a second time may, in fact, stimulate (somewhat) a better antibody build up in those who were able to react the first time around so 2 doses best for all.

In brief: Doses are same but:

About 5% of people don't respond to 1st dose of mmr.
The reason for the second dose is to catch those non responders & give them a chance to develop an immune response to measles, mumps and rubella too. It also appears that seeing the MMR vaccine a second time may, in fact, stimulate (somewhat) a better antibody build up in those who were able to react the first time around so 2 doses best for all.
Dr. Marybeth Lambe
Dr. Marybeth Lambe
Thank
Dr. Mark Diamond
Pediatrics
1 doctor agrees

In brief: Same

Dr lambe's answer is correct.
To emphasize, the actual vaccine each time is the same.

In brief: Same

Dr lambe's answer is correct.
To emphasize, the actual vaccine each time is the same.
Dr. Mark Diamond
Dr. Mark Diamond
Thank
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