South African Covid variant defeats plasma therapy, may reduce vaccine efficacy - Mint

The new Covid-19 variant identified in South Africa can evade the antibodies that attack it in treatments using blood plasma from previously recovered patients, and may reduce the efficacy of the current line of vaccines, scientists said on Wednesday.Researchers are racing to establish whether the vaccines currently being rolled out across the globe are effective against the so-called 501Y.V2 variant, identified by South African genomics experts late last year in Nelson Mandela Bay.The 501Y.V2 variant is 50% more infectious than previous ones, South African researchers said this week.British scientists and politicians have expressed concern that vaccines currently being deployed or in development could be less effective against the variant.The paper said it remained to be seen how effective current vaccines were against 501Y.V2, which would only be determined by large-scale clinical trials.