Human corona viruses (HCoVs) are considered to be the inconsequential pathogens which can cause a common cold even in healthy people. But, the cause of global epidemics with alarming morbidity and mortality in the 21st century by highly pathogenic HCoVs like -severe acute respiratory syndrome corona virus (SARS-CoV) and Middle East respiratory syndrome corona virus (MERS-CoV) proved their emergence from animal reservoirs. 2019 novel corona virus (2019-nCoV), yet another pathogenic HCoV was recognized in Wuhan, China in December 2019 which has caused serious illness and death.
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