The asymptomatic infected person in novel coronavirus literally means that novel coronavirus exists in the body and is diagnosed as positive by nucleic acid detection, but has no clinical symptoms, no symptoms and signs such as sore throat, fever, fatigue, dry cough and hypoesthesia, and no CT imaging features; However, the patients diagnosed in COVID-19 are nucleic acid positive, and they also have clinical symptoms. Typical COVID-19 ground glass changes can be seen on chest CT.
In COVID-19, it doesn't matter whether asymptomatic infected people are okay.
Asymptomatic infection in COVID-19 does not mean nothing, because asymptomatic infection can be divided into two situations:
1, novel coronavirus has been infected, and the virus is replicating in the body, but it is still in the incubation period and has no disease. After the incubation period, the disease will occur after a certain viral nuclear load appears.
2. The infected person is positive for nucleic acid detection, and after the incubation period of 14 days, there are no self-feeling or clinically recognizable symptoms and signs, and it is always asymptomatic infection.
It can be seen that there are two major risks in the treatment of asymptomatic infected people in COVID-19:
1. In COVID-19, asymptomatic infected people are not necessarily asymptomatic at all stages of the disease process. If the patient's autoimmune ability declines, the patient can actively replicate in a short time due to COVID-19, thus presenting typical symptoms, which can lead to severe pneumonia in severe cases.
2. In COVID-19, asymptomatic infected people are also contagious. If asymptomatic infected people frequently go in and out of densely populated areas and do not pay attention to personal protection, it is more likely to lead to infection in healthy people.
Why are there asymptomatic infected people in COVID-19? The reason for this is the following：
1, COVID-19 invades the human body, and the autoimmune system competes with the virus, which may cause obvious physical discomfort symptoms. However, when the human body is infected by the virus, the symptoms are mild or the self-resistance is strong, there will be asymptomatic infected people in normal state.
2. Although the spread of Omicron virus is very strong this time, the morbidity rate has dropped again. In addition, most people in China have been vaccinated with COVID-19 vaccine, which has formed a protective effect in the body, so there will be more asymptomatic infected people.
Can asymptomatic infected people in COVID-19 be infected? In COVID-19, asymptomatic infected people are contagious.
Asymptomatic infected people often do not have any discomfort symptoms, such as fever, cough, fatigue and other respiratory symptoms, so they are also called recessive COVID-19 patients. But it is confirmed that they are infected with COVID-19 on the basis of positive nucleic acid test, while positive COVID-19 nucleic acid in the body means that the virus is active and can infect people and COVID-19 to the general population. Therefore, asymptomatic infected people in COVID-19 need isolation treatment to avoid cross-infection.