On April 1, the Joint Prevention and Control Mechanism of the State Council held a press conference to introduce the situation regarding epidemic prevention and control in a strict and practical manner.
Wang Guiqiang, director of the Department of Infectious Diseases at Peking University First Hospital, introduced that asymptomatic infections include two groups, one is the incubation period, and the other is persistent asymptomatic infection. In our country, due to active large-scale nucleic acid testing, many patients are found during the incubation period after infection. At this time, the virus nucleic acid is positive, but the disease has not yet developed, so there are no symptoms. However, over time, some patients will develop symptoms, such as fever, etc., and become symptomatic cases, so they are often referred for diagnosis.
After the recent outbreak of Omikron infection, the proportion of severe cases and the proportion of symptoms decreased significantly, so in this epidemic, it can be seen that many patients are asymptomatic from beginning to end, So the ratio has increased significantly. Of course, vaccination in our country is also a reason for the increase in asymptomatic patients. We emphasize that we should be very careful when asking about the medical history, because some patients feel good about themselves, and their self-perception threshold is very high. If you don’t ask them in detail about some symptoms, they may tell you that they have no symptoms, and ask them in general if they feel anything. , he will say no feeling.
But if you ask in detail, such as whether you are tired, how well you have eaten recently, how is your physical strength, etc., he will tell you these performances. Therefore, sometimes asymptomatic infections need to be carefully inquired about the medical history in order to really find the sick patient.
Source: Shenyang Evening News