Do you want the nucleic acid test report of Shenyang airport now?

? At present, there is no need to carry a nucleic acid test report from Shenyang airport.

A characteristic of COVID-19.

? One of the characteristics of (1) is camouflage. In other words, the virus can be disguised as asymptomatic, making the infected person look like a healthy person. It can also be disguised as various symptoms, making infected people look like they have the common cold, acute gastroenteritis, acute pharyngitis and so on.

? (2) The incubation period is too long. For COVID-19, the isolation period adopted by most countries at present is 14 days, which is determined according to the ordinary incubation period 14 days. However, a report published in March 1 1 by The Lancet, a well-known medical journal, showed that the median COVID-19 latency of patients was about 20 days, and some patients even reached 37 days.

Second, how to prevent COVID-19?

? (1) Develop good personal hygiene habits. Pay attention to personal hygiene, cover your mouth and nose with tissue when coughing or sneezing, wash your hands frequently, don't touch your mouth, eyes and nose with dirty hands, and don't spit everywhere. Avoid dinner parties. People who eat together are close contacts with each other. The droplets produced by coughing and sneezing can directly pollute the whole person who eats, and it is very easy to spread diseases. In order to prevent the spread of novel coronavirus, please don't have dinner together.

? (2) Go to public places less. There are many people in public places, with large flow and complicated personnel composition. Once there is a virus carrier, it is easy to spread from person to person, especially in public places with dense people and poor air mobility, such as shopping malls, restaurants, cinemas, Internet cafes, KTV stations, airports, docks, exhibition halls and so on.