[Nigeria Health Watch] In August 2020, Nigeria became the last African country to be declared free from wild poliovirus. This was achieved by relentless vaccination efforts across urban and rural communities, including awareness campaigns and deployment of personnel to communities to carry out vaccination programmes. An underlying, but essential enabler of this success story was the use of location technology to carefully map out areas where there were outbreaks, and that were most in need of these vaccines. The technology combi