![Daily Current Affairs Quiz 7 June 2021](https://www.gkseries.com/blog/wp-content/uploads/2021/06/7-1.png)
The B.1.617.2 variant of Covid-19 also known as
A. Alpha Variant
B. Beta Variant
C. Gamma Variant
D. Delta Variant
Explanation:
The B.1.617.2 variant of Covid-19 also known as Delta Variant according to WHO nomenclature, constituted nearly three in four breakthrough infections in Delhi, according to a research study by scientists in Delhi.Breakthrough infections are instances of people testing positive for the virus after getting vaccinated.