World passes three billion vaccine mark in race to contain Covid

Covid-19 vaccine

A medic administers a Covid-19 vaccine at the headquarters of the Kenya Medical Practitioners and Dentists Council in Nairobi on March 31. 

Photo credit: Sila Kiplagat | Nation Media Group

More than three billion Covid-19 vaccines have been administered around the world, as countries race to contain the virulent Delta variant that is fuelling outbreaks all over the globe.

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