Fig. 1

Surveillance of FPV infection in selected regions of China, 2018-2022. AÂ Locations of sample collection and FPV-positivity rate in each province. A darker color indicates a greater number of samples, and the pie charts show the percentages of positive and negative FPVs for each province. BÂ Total detection rate of FPV. CÂ The proportion of each component under different classifications of FPV-positive samples. DÂ Share of the six FPV VP2 types with the highest prevalence in each province of FPV-positive samples. Censor code of this map: GS (2019) 1695