Shanghai community has been closed for a long time, why are there so many positive infections? The latest local response

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From 00:00 to 24:00 on the 13th, Shanghai added 2,573 new confirmed cases of local new coronary pneumonia and 25,146 new local asymptomatic infections. On the morning of the 14th, Shanghai held a press conference on the prevention and control of the new crown pneumonia epidemic to introduce the latest situation of epidemic prevention and control.

  • As of 9:00 on the 14th, the current round of epidemic investigation in Shanghai has 280,120 close contacts in Shanghai have been put under control, of which 234,239 have tested negative for nucleic acid, and the rest are being tested. A total of 124,736 people in close contact in Shanghai have been investigated, and control has been implemented. Among them, 122,511 people have negative nucleic acid test results, and the rest are being tested.

  • 737 cases in Shanghai were discharged from hospital on the 13th, and 15,406 cases were released from centralized isolation and medical observation. They will return to their places of residence for health monitoring.

    • Why are there still positive infected people in the closed community?

    • There is a delay in screening data. The workload of nucleic acid screening is very large. If positive mixed tubes are found after the test, apheresis and single test are required for review. For those who are positive, further epidemiological Investigate, collect accurate relevant medical information and personal information, and complete reporting and review work at the same time.
    • Family cluster transmission exists. The strain that caused this round of the epidemic is the Omicron BA.2 variant, which has the characteristics of strong concealment and rapid transmission. The observed incubation period is mostly 3 to 5 days. Intra-family transmission is currently the main route of transmission. Generally speaking, when an infected person is found in a family, other family members may have been infected, but they are still in the incubation period and will be detected in subsequent screenings. .
    • In the stage of global static management, although residents stay at home, there are still many materials in circulation. If there are virus-contaminated items, it cannot be ruled out that infection caused by contact.

    Currently confirmed cases in Shanghai include 9 severe casesAt present, there are a large number of local new crown infections in Shanghai. Except for asymptomatic infections, most of the confirmed cases are mild, a few are ordinary, and there are severe ones. There are currently 9 severe cases >, all received treatment in designated medical institutions. Among the 9 patients, 1 was 33 years old, and the other 8 were elderly, the youngest was 70 years old and the oldest was 93 years old. They are all accompanied by serious underlying diseases(such as severe immune diseases, advanced tumors, severe cardiovascular and cerebrovascular diseases, important organ function failure, etc.)and high-risk factors such as advanced age, were not vaccinated against the new coronavirus. In response to the increase in the number of confirmed cases in this epidemic, the number of elderly people involved, and the beginning of an increase in severe cases, Shanghai has coordinated the city’s high-quality medical resources, strengthened the city’s public health, The treatment force of 8 designated hospitals including the Health Center and the northern branch of Ruijin Hospital, while treating the new crown, carries out multidisciplinary treatment for the original underlying diseases of these patients.

    Source: News NetworkEditor in charge: Wang ZimoEditor: Xing YanyanZhang Xueyu< /span> Sun Dai