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In switch, South Africa to give health workers J&J vaccine
By Andrew Meldrum
Vaccines vs variants: the race to immunise the developing world
By Bryan Harris, Stephanie Findlay & David Pilling
Covid: South Africa halts AstraZeneca vaccine rollout over new variant
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Not recommending AstraZeneca vaccine for the elderly risks the lives of the most vulnerable
By Julian Savulescu & Jonathan Pugh
Western countries have 'hoarded' Covid vaccines. Africa is being left behind as cases surge
By Eoin McSweeney & Nyasha Chingono
India, South Africa bid to ban vaccine patents blocked
By Ashutosh Pandey
How AstraZeneca's vaccine was hit by flawed trials, defects and politics — but might still save the world
By Sarah Neville, Donato Paolo Mancini & Hannah Kuchler