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.
4 August 2014 - Public Health Emergency of International Concern (PHEIC) related to the international spread of wild poliovirus. Implications for the Americas, polio-free Region
The Protocol for responding to imported cases of poliomyelitis due to wild poliovirus has the following objective: Prevent the occurrence of national poliomyelitis epidemics caused by the importation of wild polio virus, prevent the outbreak from spreading among countries in the Americas and prevent renewed circulation of wild polio virus in any country that experiences an imported case.
Upon detection of wild poliovirus type 1 (WPV1) in environmental samples from Brazil, the Pan American Health Organization (PAHO) / World Health Organization (WHO) recommends that Member States of the Region of the Americas continue to strengthen surveillance for cases of acute flaccid paralysis in order to rapidly detect any new instances of imported poliovirus and maintain high immunization coverage against polio.