The number of COVID-19 infections is increasing rapidly in Jilin, Shenzhen and other places. Why?

Since the beginning of this year, the number of people infected with new coronary pneumonia in Jilin, Shenzhen and other places has increased rapidly. The main reason is that Omicron is highly contagious, spreads invisibly, and spreads quickly. At the same time, Jilin, Shenzhen and other places have also exposed There are also shortcomings in the implementation of epidemic prevention and control.

On March 13, the Jilin Provincial Health Commission reported that from 0-24:00 on March 12, there were more than 2,000 new locally infected people in Jilin, including 1,412 confirmed cases (1,398 mild cases, common cases 14 cases). Currently, Changchun City's enterprises and institutions have ceased operations and stopped all non-essential movements. The city's communities (villages) and units have implemented closed management. Intercity buses, line passenger transport and tourist charter services to outside the urban area have been suspended.

On March 13, the Shenzhen Municipal Health Commission reported that from the beginning of 2020 to March 11, a total of 1,136 cases were diagnosed. From 0 to 24:00 on March 12, there were 66 new cases in Shenzhen. Among them, 60 cases were diagnosed as confirmed cases of new coronavirus pneumonia, and 6 cases were diagnosed as asymptomatic infections of new coronavirus; 28 cases were discovered during the screening of close contacts under quarantine observation, 5 cases were discovered during screening in key areas, and 2 cases were discovered during screening of key groups. The investigation found that 31 cases were discovered during community screening.

?? Since the beginning of this year, the number of people infected with new coronary pneumonia in Jilin, Shenzhen and other places has increased rapidly. The main reason is that most of the confirmed cases in Jilin and Shenzhen are asymptomatic infections, most of which are mild cases, and they are all overseas. imported, resulting in local spread, and the culprit was none other than Omicron. Omicron spreads covertly, is highly contagious, and spreads quickly, which can easily lead to a large number of infection cases in infected areas in a short period of time. At present, Omicron continues to mutate and has become 30% more contagious than the original virus. At the same time, it has also exposed the shortcomings of Jilin, Shenzhen and other places in implementing epidemic prevention and control.

First, Omicron has strong communication power. According to authoritative medical media reports, the Omicron spike protein is the key for the virus to infect human cells. Mutations can increase the ability of the virus to bind to human cells, thereby increasing the virus's transmissibility. The Omicron spike protein is more infective than the Delta variant. It is 4.2 times stronger, and its replication titer in bronchial tissue is 70 times that of the Delta variant. The main transmission routes are through respiratory droplets and close contact or aerosol transmission. After infection, the symptoms of most patients are not obvious, and many people have no symptoms. Some of them mainly have fever, dry cough, headache, nasal congestion, fatigue, sore throat and other non-specific symptoms, which makes its spread very insidious. , it is more likely to spread at multiple points or to cause concentrated outbreaks, and more than 80% to 90% of Omicron patients are asymptomatically infected.

Second, the rapid increase in COVID-19 infections in places such as Jilin and Shenzhen has also exposed shortcomings in epidemic prevention and control. There has been a sharp increase in the number of confirmed cases of COVID-19 in Jilin, Shenzhen and other places. I think the reasons are, first of all, that it reflects the insidious spread of the novel coronavirus, its strong contagiousness, and its rapid spread. It is difficult to detect in the early stage and can easily lead to community spread. Secondly, it also reflects that in the face of the rapid rise of the epidemic, the capacity to expand medical resources is insufficient, resulting in limited centralized treatment in a short period of time; thirdly, due to the insufficient emergency response mechanism, the characteristics of the Omicron virus and the severe and complex epidemic situation are difficult to understand. There is insufficient understanding of the situation, and there are still shortcomings in the implementation of "check everything that should be inspected, isolate everything that should be isolated, treat everything that should be treated, and manage everything that should be managed".

? ?Summary: In view of the rapid increase in COVID-19 infections in Jilin, Shenzhen and other places, I believe that we must actively face the epidemic, conscientiously implement the corresponding epidemic prevention and control measures and make up for the shortcomings. Effectively block the spread of viruses.