Epidemiological Update. Detection of a circulating vaccine-derived poliovirus type 2 (VDPV2) in the United States: Considerations for the Region of the Americas

On 13 September 2022, the United State of America announced that polioviruses found in New York, both from the case of paralytic polio in an unvaccinated adult in Rockland County and in several wastewater samples from communities near the patient’s residence, meet the World Health Organization (WHO)’s criteria for circulating vaccine-derived poliovirus (cVDPV). Given this situation, the Pan American Health Organization / World Health Organization (PAHO/WHO) reiterates to Member States the need to join efforts to maintain and strengthen epidemiological surveillance of acute flaccid paralysis (AFP) for the rapid detection of cases, achieve polio vaccination coverage of >95%, and have an up-to-date response plan for polio outbreaks or events.