XBB.1.5: A new threatening SARS-CoV-2 Omicron subvariant - Islam, Md. Aminul; Kaifa, Fatema Hasan; Chandran, Deepak; Bhattacharya, Manojit; Chakraborty, Chiranjib; Bhattacharya, Prosun; Dhama, Kuldeep (Frontiers in Microbiology, 2023)