Nigeria has gone for a year and a half without a new case of wild poliovirus. One of the last three countries where polio has been endemic (Afghanistan, Nigeria and Pakistan) is on its way to being declared officially polio-free after a concerted vaccination drive by Nigeria's federal and state governments, the Global Polio Eradication Initiative and the Bill & Melinda Gates Foundation. They set a target of 80% vaccination. In 2012, only 16% of high-risk areas reached the target, but by 2015, 97% had. Very impressive. It's nice to read a good news story for a change.
With vigorous government backing, Emergency Operations Centres were established. Each worked as a War Room, with focused teams, and direct action based on lots of data and metrics. Read more about it in this fascinating McKinsey report.