The country's yellow fever outbreak is a timely reminder that African countries can't get complacent with their vaccination efforts.
Western anti-immunisation movements have taken root in local communities resulting in some parents refusing to vaccinate their children.
African ministers are taking new steps to provide vaccines for children who don't have access.
Claiming blanket protection of children without accurate data is playing it fast and loose with lives, writes Daniel Berman and Gregory Hussey.
Donations led by the UK and Bill Gates have far exceeded the $3.7-billion targeted in a drive to fund vaccinations for children in poor countries.