Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) is the latest coronavirus to infect humans. It has caused the present pandemic of COVID-19. Even after affecting more than 220 countries and territories, causing more than 220 million infections and more than 50 million deaths, the pandemic is continuing unabated. There are mutant strains of the virus emerging every few months that are more contagious than the previous ones, causing new waves of infection in different corners of our universe. Strong epidemiological evidence points towards bat origin of SARS-CoV-2, although the details of reservoir and intermediate hosts are still largely unknown.

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