Nigeria, March 5 -- On February 24, 600,000 doses of COVID-19 vaccine arrived in Accra, Ghana. Two days later, another 504,000 doses arrived in Abidjan, Cote d'Ivoire. On Tuesday, 3.92 million vaccine doses arrived in Abuja, Nigeria and a further 324,000 arrived in Dakar, Senegal the following day. These were the first international deliveries of COVID-19 vaccine through the COVAX Facility, and - with the first doses administered in both countries just days later - the first steps in what will be the largest immunisation campaign in world history. Hopefully, these milestones represent a turning point in the world's response to the pandemic.

A wide-ranging coalition of international public health organisations and other partners, COVAX aims...