… The overall disease incidence of polio has been reduced by 99.9% from the time the
global polio eradication initiative (GPEI) was launched in 1988. Two of the three wild types
of polio have been certified eradicated, with only wild polio virus type 1 (WPV1) circulating
in two countries – Pakistan and Afghanistan [1] . However, WPV1 transmission in these two
countries intensified in recent years, with number of paralyzed children from WPV1 five
times higher in 2019 compared with 2018, a concerning setback from the consistent decline …