![Is natural infection better than vaccination?](https://ytimg.googleusercontent.com/vi/MSsVTaLkPng/hqdefault.jpg)
Is natural infection better than vaccination?
Paul A. Offit, MD, compares immune responses caused by natural infection and vaccination, using measles as an example of how vaccination can induce a "good enough" immune response.
Visit the Vaccine Education Center to learn more about vaccines, http://vaccine.chop.edu.
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