World’s first tweaked Covid vaccine ‘neutralises’ dangerous South Africa and Brazil strains, Moderna trial data suggests: A REFINED vaccine has been found to ‘neutralise’ the Brazil and South African coronavirus variants, US company Moderna claims. Latest trials have found getting a third jab of either ... Source: "South Africa" - BingNews Covid: US backs waiver on … [Read more...] about SA News: World’s first tweaked Covid vaccine ‘neutralises’ dangerous South Africa and Brazil strains, Moderna trial data suggests