Polio Bulletin (35-36) - 10 September 2022

Polio this week as of 14 September

Following the isolation of vaccine-derived poliovirus type 2 (VDPV2) in New York, USA, in July, further virological and epidemiological analysis confirms circulation of this strain. It is important to note that since initial isolation of VDPV2, local and national public health authorities have already been operating on the assumption that this strain is circulating, and as such, this official classification at this time does not affect the operational response. New York and US public health authorities continue to implement a timely and appropriate response to this circulating VDPV2 (cVDPV2), in order to rapidly interrupt its circulation, including by: continuing to intensify surveillance efforts (including for potential cases of paralysis), identifying population sub-groups/areas with potential immunity gaps, and proactively reaching out to communities with known immunity gaps to strengthen vaccination coverage. Source: www.polioeradication.org