me coronavirus (MERS-CoV) and severe acute respiratory syndrome (SARS) in Middle East (2009) and Guangdong, China (2002-03), respectively [3-6]. The COVID-19 infection, soon after its emergence not only caused a number of deaths in China but rapidly spread to other countries as well [7]. The emergence of SARS-CoV-2 and the menace of imminent endemics have brought into forefront the urgent n