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Why do people still get polio in some countries and not in others?

By Katrine L. Wallace, Assistant Professor of Epidemiology and Biostatistics, University of Illinois Chicago

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com.

Why are people still getting polio in some countries and in not others? – Mia, age 9, Centennial, Colorado

On a busy street in Karachi, Pakistan, a healthcare worker kneels down so she’s eye to eye with…

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