Only Delta is a variant of concern: WHO
Topics Covered: Issues related to health. Only Delta is a variant of concern: WHO: Context: The World Health Organisation (WHO) has said only B.1.617.2, one of the three strains of the B.1.617 COVID-19 variant first detected in India, is a “variant of concern” now. Background: The B.1.617 variant was first detected in India and was …








