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Number of wild poliovirus (WPV) positive isolates by year, serotype, and surveillance system–Jan 2011 –Dec 2013.

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posted on 2017-07-25, 17:35 authored by Tori L. Cowger, Cara C. Burns, Salmaan Sharif, Howard E. Gary Jr., Jane Iber, Elizabeth Henderson, Farzana Malik, Syed Sohail Zahoor Zaidi, Shahzad Shaukat, Lubna Rehman, Mark A. Pallansch, Walter A. Orenstein

Number of wild poliovirus (WPV) positive isolates by year, serotype, and surveillance system–Jan 2011 –Dec 2013.

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