Epidemiological Alert: Poliomyelitis (20 October 2010)
The Global Polio Eradication Initiative is currently registering 574 cases caused by wild poliovirus type 1 (WPV1) and 3 (WPV3) in non-endemic countries: Angola, central-Asian countries, Russia, Chad, Sudan, Democratic Republic of Congo, Nepal, and western-African countries.
Regional Office for the Americas of the World Health Organization
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