South African scientists have found that previous infection does not grant immunity against the 501Y.V2 Covid-19 variant, while they and political analysts agree that Boris Johnson probably shouldn't be taken seriously in his attempts to vilify South Africa as its source.
Britain's Prime Minister Boris Johnson goes for a walk in St James' park in London, Britain, 11 May 2020. Britons are now in their seventh week of lockdown due to the Coronavirus pandemic. Countries around the world are taking increased measures to stem the widespread of the SARS-CoV-2 coronavirus which causes the Covid-19 disease. Picture: EPA-EFE/FACUNDO ARRIZABALAGA