Coronavirus is a kind of virus widely existing in nature. It is named because the morphology of the virus is similar to the crown observed under the electron microscope. So far, it has been found that coronavirus only infects vertebrates and can cause respiratory and digestive tract and nervous system diseases in humans and animals.
The 2019 new coronavirus was named 2019-nCoV by the World Health Organization on January 12, 2020, and was named SARS-CoV-2 by the International Virus Classification Committee on February 11, 2020. The new coronavirus was initially discovered in Wuhan, China, and gradually spread to the world. Nowadays, most countries in the world have found infected people