Nivedita Gupta, Harmanmeet Kaur, Pragya D. Yadav, Labanya Mukhopadhyay et al.
Abstract During March to June 2021 India has experienced a deadly second wave of COVID-19 with an increased number of post-vaccination breakthrough infections reported across the country. To understand the possible reason of these breakthroughs we collected 677 clinical samples (throat swab/ nasal s...