[...]it is really critical to understand the important facts about such a lethal entity. On 30th January 2020, the World Health Organization (WHO) declared the COVID-19 outbreak as a global public health emergency of very high-risk category. The host species of alpha- and beta-CoVs is mammal and these viruses generally infect epithelial cells in the respiratory and/or enteric tracts, causing respiratory disease and/or gastroenteritis with short incubation period, ranging from a few days to a week [4]. Similar to other HCoVs, the SARS-CoV-2 viral envelop is made up of a lipid bilayer in which the structural proteins, viz., spike (S), envelope (E) and membrane (M) proteins, are anchored and inside the virus' envelop, there is the nucleocapsid (N) protein which is bound to the RNA genome (Figure 1) [6,7].The genome size of this virus is around 30 kb encoding different non-structural proteins at the 5'-end, four structural proteins (S, E, M and N) and several lineage-specific proteins at the 3'-end [6].
A Review of Novel Coronavirus Infection: COVID-19