Coronaviruses are a large group of viruses which are found in avian and mammalian species. It has been reported that, the identification and characterization of a novel coronavirus (2019-nCoV) which caused a pandemic of acute respiratory syndrome in humans in Wuhan, China. By 26 January 2020 it has caused 2,050 laboratory-confirmed infections with 56 fatal cases. Furthermore, it was found that 2019-nCoV is 96% identical at the whole-genome level to a bat coronavirus.The new coronavirus SARS-CoV-2 binds with human respiratory cells in order to hijack them to produce more viruses. The new virus attaches to a receptor on respiratory cells called angiotensin-converting ACE2. The most abundant protein in coronavirus is the nucleocapsid protein.