Polio update in Nigeria

Last week the GPEI announced three new circulating vaccine-derived poliovirus type 2 (cVDPV2) cases in Nigeria (Niger, Katsina and Zamfara states), bringing its YTD total to 20. Pakistan’s second wild poliovirus type 1 (WPV1) case this year, which was detailed in our May 4 alerts, was also mentioned in the update. Read more

Affected Regions


Affected Countries