Following resumed supplementary immunization activities, Afghanistan detected only four WPV1 and 43 cVDPV2 cases in 2021 (decreases of 93% and 86% from 2020), and two WPV1 and zero cVDPV2 cases in 2022.
Observational
occurred during July-October 2021, SIAs resumed during November 2021 in all districts after the political transition, and 3.5-4.5 million previously unreachable persons have been vaccinated since. However, restrictions on how SIAs are conducted are still in place in the critical South Region provinces of Kandahar, Helmand, and Uruzgan. If efforts to vaccinate all children are enhanced and expanded, Afghanistan has an opportunity to interrupt WPV1 transmission during 2023.
Mohamed et al. (Thu,) conducted a observational in Poliomyelitis. Supplementary immunization activities (SIAs) with oral poliovirus vaccine vs. 2020 baseline was evaluated on Detected cases of wild poliovirus type 1 (WPV1) and circulating vaccine-derived poliovirus type 2 (cVDPV2). Following resumed supplementary immunization activities, Afghanistan detected only four WPV1 and 43 cVDPV2 cases in 2021 (decreases of 93% and 86% from 2020), and two WPV1 and zero cVDPV2 cases in 2022.