13,000 teams led by women were dispatched across the southern province of Sindh to vaccinate some 12 million people over the age of 12 with COVID-19 vaccines. This dramatic intervention by the Sindh government aims to vaccinate a cohort they have struggled to reach: some 25% of residents who have not had their first dose, despite vaccines being widely available for the past year through supplies provided by the U.N.-backed COVAX program, the U.S. and China. Find out how these door-to-door campaigns are progressing in this NPR article.