Watch: What is B.1.617 strain of SARS-CoV-2?

For B.1.617.2, the Covid-19 variant first discovered in India in October 2020, the WHO has assigned the name 'Delta'. This means that the variant will now be referred to as the 'Delta' strain of coronavirus.

Another strain (B.1.617.1) first found in India in October of last year, has been labelled 'Kappa'.