Mixing of Covid-19 vaccines Covaxin and Covishield as first and second doses or vice versa was found to be four times effective, a study by Hyderabad-based AIG...
March 12, 2026
Mixing of Covid-19 vaccines Covaxin and Covishield as first and second doses or vice versa was found to be four times effective, a study by Hyderabad-based AIG...