Explained: Why you should take a second Covid-19 vaccine shot

The world's largest Covid-19 vaccination drive is currently underway in India.

So far, over six crore vaccines have been administered across the country.

But there are some who have taken their first jab but are contemplating why they should get a second vaccine jab. 

Dr Randeep Guleria, Director of All India Institute of Medical Sciences, tells you why it is important to take a second dose of the Coronavirus vaccine.

Watch the video