Moderna says Covid vaccine is effective against new variants - but a 'booster shot' is being developed
Updated Monday, 25th January 2021, 4:07 pm While Moderna has said that its vaccine is effective against the new Covid-19 strains, a booster shot is in development (Photo: CHANDAN KHANNA/AFP via Getty Images) Dr Anthony Fauci, the top US infectious disease expert, has revealed that scientists in the US are preparing to upgrade Covid-19 vaccines in order to address the variants of the virus which are circulating in the UK and South Africa. As Dr Fauci made this announcement, producer Moderna stated that, though its Covid-19 vaccine works against the variants, it is also developing a new inject...