The UK and US are to donate more than 600 million Covid-19 vaccine donations between them as part of global efforts to control the pandemic.
In this special report, we speak to doctors and other leading experts around the world to look at what kind of an impact that will make.
The donations come as African countries face a severe shortage of vaccines for their populations, with medics concerned a third wave will overwhelm hospitals across the continent.
We also look at the Evening Standard’s Vaccine for the World project which is highlighting some of the enormous efforts being made to get injections to some of the hardest to reach places on Earth.
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