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World Health Organization (WHO) on Twitter: "#WorldPolioDay: There is NO cure for #polio, but vaccines can protect a child for life. #VaccinesWork https://t.co/izTNyIcAv0" / Twitter
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File:Polio worldwide 2005.svg - Wikimedia Commons
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Polio - Wikipedia
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Polio eradication - Wikipedia
E-MEETING Highlights for May 18, 2021: Frank Schulenburg, How to improve the quality of knowledge on Wikipedia | Rotary Club of San Francisco
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Community engagement and integrated health and polio immunisation campaigns in conflict-affected areas of Pakistan: a cluster randomised controlled trial - The Lancet Global Health
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Polio - Wikipedia
