What is Covid-19 Delta, that is rapidly spreading in Australia and India?

Sudha Seshayyan, Vice-Chancellor, Tamil Nadu Dr. MGR Medical University, speaks with Kulasegaram Sanchayan about the many variants of Covid-19.

Dr Sudha Seshayyan, Vice-Chancellor, Tamil Nadu Dr. MGR Medical University. Source: Dr Sudha Seshayyan

In the first of the two-part interview, Dr Seshayyan explains how the virus mutates, and clarifies the various names given to the variants.

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