Emergence of two distinct variants of SARS-CoV-2 and an explosive second wave of COVID-19: the experience of a tertiary care hospital in Pune, India - Shubham Shrivastava; Suhas T. Mhaske; Meera S. Modak; Rashmi G. Virkar; Shamburaje S. Pisal; Akhilesh Chandra Mishra; Vidya A. Arankalle (Archives of Virology, 2022)