Ngozi Okonjo Iweala and Brahima Coulibaly: Africa urgently needs Covid-19 aid, for all the world’s sake

The global system is as strong as its weakest link. The pandemic will only be beaten in rich countries when it is beaten everywhere else, writes Ngozi Okonjo Iweala and Brahima Coulibaly

A medical worker sanitises her hands at a testing centre at Tygerberg Hospital in Cape Town, South Africa, Monday, April 6, 2020, as South Africa continued its 21 days nationwide lockdown in an effort to control the spread of the coronavirus.(AP Photo/Nardus Engelbrecht)