Historical Analysis and Scientific Overview of Coronaviruses

Abstract

Corona viruses (CoVs), enveloped to be a strand RNA virus, which are described by the name due to its crown-like spike protein substances with bulbous surface projection. CoVs cause an assortment of illnesses in birds, animals like bats, pigs, snake, chickens, and extend to human. It is a type of respiratory tract diseases. The family Coronaviridae envelops an expansive range of animal and human infections, all portrayed by a particular morphology. Coronaviruses are probably circular in shape with outer membranes. Every molecule is encompassed by a halo or "crown" which refers to the bulbous distal parts of the membrane embedded glycoproteins. Before 2003 individuals from this family were accepted to cause just gentle respiratory sickness in people. But after 2003 the virus got derived themselves in different characteristic forms creating extreme intense respiratory infection (SARS-CoV). The later raise of MERS-CoV and now recent nCoV creating COVID-19 disease are creating more challenges to humans. This paper gives the overall knowledge about various coronaviruses from historical background to till date.

Keywords

• coronavirus
• covid-19
• epidemiology
• mers-cov
• sars-cov