Both Covishield and Bharat Biotech’s Covaxin produce a “good immune response” but the AstraZeneca Covid-19 vaccine shows “significantly higher” seropositivity rate and anti-spike antibody titre, a new study by Indian doctors has found.#FightAgainstCorona #Coronavirus #Coronvirushavoc #Coronadeaths #Unlock #Coronavaccination #Covishield