sputnik v vaccine how it works

#Covid #vaccine #comparability #Hindi #covishield #covaxin #Sputnik Covid 19 vaccine comparability in Hindi | covishield vs covaxin vs Sputnik v – This lecture explains in regards to the covid 19 vaccines in Hindi. There are three covid 19 vaccines in India and we are going to know the comparability between covishield, covaxin and sputnik v…