For an epidemic caused by a new strain of coronavirus (2019-nCoV) Coronavirus, also called corona virus, is a group of viruses of the Coronavirinae subfamily in the Coronaviridae family, according to the Nidovirales Ministry. Coronavirus causes disease in mammals, including humans and birds. In humans, the virus that causes respiratory infections is usually mild but in rare cases can be fatal. Coronavirus is a enveloped virus with a positive single-stranded RNA genome and with a spiral symmetrical nucleocapsid. The coronavirus genome size ranges from 26 to 32 kilo base pair, the largest for RNA viruses.