20 19, 19 Since February, an outbreak of novel coronavirus has occurred in Wuhan, Hubei Province. With the spread of the epidemic, such cases have also appeared in other parts of China and many foreign countries. As an acute respiratory infectious disease, the disease has been listed as a Class B infectious disease stipulated in the Law of People's Republic of China (PRC) on the Prevention and Control of Infectious Diseases, and managed as a Class A infectious disease.

Coronavirus is a big virus, which is known to cause diseases. The patients showed different clinical symptoms ranging from the common cold to severe pulmonary infection, such as Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). The novel coronavirus 20 19-nCoV discovered in Wuhan this time is a kind of novel coronavirus that has not been found in humans before.

Etiological characteristics of novel coronavirus;

It belongs to coronavirus of genus B, with capsule, round or oval particles. Novel coronavirus is mainly transmitted through respiratory tract, which is highly contagious. The main symptoms of patients are fever, dry cough and fatigue, and a few cases progress to severe disease.

Most patients have a good prognosis and can recover after general treatment and supportive treatment. A few elderly people or patients with chronic basic diseases have poor prognosis and can progress to severe diseases. At present, there is no effective antiviral treatment, mainly symptomatic support treatment.