摘要：What is already known about this topic? Containment of poliovirus materials is essential to establishing and maintaining global poliovirus eradication. What is added by this report? Wild poliovirus type 2 was declared eradicated in 2015; 25 countries have designated 73 poliovirus-essential facilities to retain poliovirus type 2 materials. Wild poliovirus type 3 materials have been subject to containment requirements since the virus was declared eradicated in 2019. Just as with type 2 monovalent Sabin oral poliovirus vaccine (OPV), countries using novel type 2 OPV or trivalent Sabin OPV for outbreak response should track and report related materials according to poliovirus containment requirements. What are the implications for public health practice? Countries are urged to expedite vital poliovirus containment activities, globally agreed upon in 2015, that have been delayed.
关键词：Worldwide Poliovirus Containment In 2020;Global Polio Containment 2019-2020;WHO Global Polio Eradication Initiative Progress 2020;Progress Of Global Poliovirus Containment;World Health Assembly Poliovirus Update 2020;Polio (poliomyelitis);Global Health Initiative;Global Health & Safety;Polio Vaccination;MMWR;Morbidity & Mortality Weekly Report
