Do Adults Need a Polio Booster If They Had the Vaccine as a Child? - Prevention Magazine
- Do Adults Need a Polio Booster If They Had the Vaccine as a Child? Prevention Magazine
- Polio in US: Do you need a booster shot for that? New warning after 1st US case in nearly 10 years KTRK-TV
- New York Polio Case Revives Questions About Live Oral Vaccine Scientific American
- Polio live oral vaccine: Here's why the US stopped using it years ago New York Post
- Peter Salk, son of polio vaccine’s developer, says newest U.S. case sounds a warning PennLive
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