Novel coronavirus, an inflammation caused by novel coronavirus's injury to lung tissue, is defined as novel coronavirus. It used to be necessary to distinguish between bacteria and viruses. Bacteria are the most infectious species in human life. The difference between bacteria and viruses is that bacteria have cell walls, while viruses don't. Antibiotics usually used are mainly against bacteria. After using antibiotics, bacteria die because they can't produce cell walls, and viruses are similar to human cells, so antibiotics used at ordinary times have no killing effect on viruses.

Novel coronavirus is called coronavirus because it looks like a corolla. There are about six kinds of coronaviruses, among which SARS virus and Middle East respiratory distress syndrome virus are the most famous. The coronavirus discovered this time is a kind of novel coronavirus, which has not been found in human body before.

This virus mainly exists in animals, such as bats, and can spread from person to person. Compared with SARS in the past, the performance of novel coronavirus is obviously different. Its characteristic is that the symptoms of upper respiratory tract infection are relatively mild, that is, cough, expectoration and runny nose are relatively mild, characterized by dry cough, inconspicuous increase of white blood cells and gradual decrease of lymphocytes. Pulmonary CT showed ground-glass changes in the lungs, which were bilateral lung lesions.

From: Dr. Yule.