Covid-19: 'Vaccine offers 99% protection against death in Delta strain'

Scientists from the Pune-based National Institute of Virology (NIV) conducted the largest study done so far in India to understand why people got Covid-19 despite taking one or two vaccine shots.

Covid-19: 'Vaccine offers 99% protection against death in Delta strain'
Scientists from the Pune-based National Institute of Virology (NIV) conducted the largest study done so far in India to understand why people got Covid-19 despite taking one or two vaccine shots.