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Progress Toward Poliomyelitis Eradication ― Afghanistan, January 2021–September 2022
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12 09 2022
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Source: MMWR Morbidity Mortal Weekly Rep. 71(49):1541-1546
[PDF-3.07 MB]
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Journal Article:Morbidity and Mortality Weekly Report (MMWR)
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Corporate Authors:Center for Global Health (U.S.). Global Immunization Division. ; World Health Organization. Polio Eradication Department. (Kabul, Afghanistan) ; World Health Organization. Polio Eradication Department. (Geneva, Switzerland) ; World Health Organization. Polio Eradication Department. (Amman, Jordan) ; National Center for Immunization and Respiratory Diseases (U.S.). Division of Viral Diseases.
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Description:Afghanistan and Pakistan are the two remaining countries with endemic wild poliovirus type 1 (WPV1) transmission (1). During 2019-2020, these countries reported their highest numbers of WPV1 cases since 2014 and experienced outbreaks of type 2 circulating vaccine-derived poliovirus (cVDPV2) (2-4).* In Afghanistan, the number of WPV1 cases nearly doubled, from 29 in 2019 to 56 in 2020; 308 cVDPV2 cases were reported during 2020. After years of active conflict, the Afghanistan government was fully replaced by the Taliban de facto government on August 15, 2021. This report describes activities and progress toward polio eradication in Afghanistan during January 2021-September 2022 and updates previous reports (3,4). During January-December 2021, four WPV1 and 43 cVDPV2 cases were detected, representing decreases of 93% from 56 cases and 86% from 308 cases, respectively, during 2020. During January-September 2022 (reported as of October 20), two WPV1 cases and zero cVDPV2 cases were detected. Although no supplementary immunization activities (SIAs)| occurred during July-October 2021, SIAs resumed during November 2021 in all districts after the political transition, and 3.5-4.5 million previously unreachable persons have been vaccinated since. However, restrictions on how SIAs are conducted are still in place in the critical South Region provinces of Kandahar, Helmand, and Uruzgan. If efforts to vaccinate all children are enhanced and expanded, Afghanistan has an opportunity to interrupt WPV1 transmission during 2023.
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ISSN:0149-2195 (print);1545-861X (digital);
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Pubmed ID:36480464
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Pubmed Central ID:PMC9762895
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Pages in Document:6 pdf pages
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Volume:71
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Issue:49
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