Covid surge 2: How big a concern is the double mutant B.1.617 for the new wave of the pandemic

As India sees an unprecedented rise in Covid cases in the second wave, there has been talk of the double mutant version of the infectious virus being the cause behind the new crisis. Teena Thacker of The Economic Times speaks with Prof K Srinath Reddy, President, Public Health Foundation of India to help us understand the situation better. Watch now.