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From:Weekly Epidemiological Record (Vol. 94, Issue 10)Widespread use of live, attenuated (Sabin) oral poliovirus vaccine (OPV) has resulted in marked progress towards global poliomyelitis eradication. (1) In under-immunized populations, however, extensive person-to-person...
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From:Weekly Epidemiological Record (Vol. 90, Issue 47)Since Nigeria reported its last case of poliomyelitis due to wild poliovirus type 1 (WPV1) in July 2014, the circulation of endemic WPV has been limited to Pakistan and Afghanistan. (1) 2 3 This report describes actions...
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From:Weekly Epidemiological Record (Vol. 93, Issue 46)Of the 3 wild poliovirus (WPV) serotypes, only type 1 (WPV1) has been detected globally since 2012. Pakistan remains 1 of only 3 countries worldwide (in addition to Afghanistan and Nigeria) that has never interrupted...
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From:Weekly Epidemiological Record (Vol. 93, Issue 31)Afghanistan, Nigeria and Pakistan remain the only countries in which transmission of endemic wild poliovirus type 1 (WPV1) continues. (1) This report describes polio eradication activities and progress in and challenges...
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From:Weekly Epidemiological Record (Vol. 94, Issue 34)Since October 2016, Afghanistan and Pakistan have been the only 2 countries to report cases of polio due to wild poliovirus type 1 (WPV1). (1) In Afghanistan, although the number of cases decreased during 2013-2016, the...
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From:Weekly Epidemiological Record (Vol. 91, Issue 44)Only 74 cases of wild poliovirus type 1 (WPV1) were reported globally in 2015, a number lower than at any time previously. (1) WPV1 detection in Afghanistan also declined in 2015 compared with the previous year, and...
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From:Weekly Epidemiological Record (Vol. 92, Issue 47)In 1988, the World Health Assembly launched the Global Polio Eradication Initiative. Of the 3 wild poliovirus serotypes, only wild poliovirus type 1 (WPV1) has been detected since 2012. Since 2014, Afghanistan, Pakistan...
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From:Weekly Epidemiological Record (Vol. 93, Issue 37)After declaration of the eradication of wild poliovirus type 2 in 2015, all countries that were using oral poliovirus vaccine (OPV) switched from trivalent OPV (tOPV) (containing types 1, 2 and 3) to bivalent OPV (bOPV)...
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From:Weekly Epidemiological Record (Vol. 94, Issue 46)Afghanistan and Pakistan are the only countries that continue to confirm transmission of wild poliovirus type 1 (WPV1). (1) This report on the status of polio eradication and progress in Pakistan during January...
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From:Weekly Epidemiological Record (Vol. 95, Issue 47)Afghanistan and Pakistan are the only countries with ongoing transmission of wild poliovirus type 1 (WPV1). (1, 2) In 2019, Pakistan reported 147 cases due to WPV1, 12 times the number reported in 2018 (12). As of 15...
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From:Weekly Epidemiological Record (Vol. 95, Issue 41)Wild poliovirus type 1 (WPV1) is still being transmitted only in Afghanistan and Pakistan. (1) After decreases in the numbers of cases in Afghanistan during 2013-2016, the number increased each year during 2017-2020....
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From:Weekly Epidemiological Record (Vol. 93, Issue 25)Since the inception of the Global Polio Eradication Initiative (GPEI) in1988, progress has been made towards interruption of wild poliovirus (WPV) transmission mainly by use of oral poliovirus vaccine (OPV) in mass...