Why 40,000 Karachi families refused polio vaccine

Forty thousand Karachi families refused polio vaccines this year. In a city where the virus circulates through every district, those refusals represent the gap between Pakistan’s impressive polio infrastructure and its inability to close the final mile of eradication. Pakistan has cut polio cases by more than 99.6% since 1994—from 20,000 annual cases to just … Read more