Only one of three strains of B.1.617 COVID-19 variant first detected in India now a "variant of concern," says WHO

The B.1.617 variant was first detected in India and was divided in three lineages.

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Only one of three strains of B.1.617 COVID-19 variant first detected in India now a "variant of concern," says WHO
The B.1.617 variant was first detected in India and was divided in three lineages.