Battle against polio

The scourge of polio is slowly spreading its tendrils once more across the landscape of Pakistan. In a concerning turn of events, wild poliovirus type 1 (WPV1) has reappeared in sewage samples from Hub, a district that had proudly remained free from the virus until now. This unsettling development — coupled with the detection of WPV1 in several other districts and the rising count of new…