One of the arguments that anti-vaccine advocates bring forth as “evidence” that vaccines don’t work is the fact that, many times, when we have an outbreak of measles, many of the cases are immunized. There are even outbreaks where the number of people vaccinated outnumber the number of un-vaccinated people. However, because of the high effectiveness of the MMR vaccine in the United States, the relatively high uptake of the vaccine in the United States, and the relatively low number of people involved in outbreaks, the fact that more vaccinated are part of an outbreak instead of unvaccinated is actually evidence that vaccines work.
Don’t believe me?
Here, let me explain…
René F. Najera, DrPH
I'm a Doctor of Public Health, having studied at the Johns Hopkins University Bloomberg School of Public Health.
All opinions are my own and in no way represent anyone else or any of the organizations for which I work.
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