Mix-and-match vaccine very effective against Covid, says Lancet study: The Tribune India
London, 18 October People who received the first dose of the Oxford-AstraZeneca Covid-19 vaccine followed by an mRNA vaccine shot had a lower risk of infection compared to those who were immunized with both doses of AstraZeneca, according to a nationwide study in Sweden. As the use of AstraZeneca’s vector-based vaccine against Covid-19 was stopped […]