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Original title: Data | Epidemics have been repeated in 4 locations across the country since November and there has been no large-scale epidemic trend
Text | Li Tong He Miao Gu Lexiao
Edit | Chen Chen
Since November, four places, including Tianjin, Shanghai, Fuyang in Anhui and Manzhouli in Inner Mongolia, have experienced repeated epidemics.
On November 20, Tianjin added 5 newly confirmed cases of new local coronary pneumonia, and the cumulative number of confirmed cases since November 8 has reached 8. The Tianjin Binhai New Area began large-scale nucleic acid testing and screenings of all residents on the morning of the 21st. As of 6:00 p.m. that day, 1,032 million nucleic acid test samples had been completed.
From the appearance of confirmed cases on November 9 to November 21, a total of 4 local confirmed cases of new coronary pneumonia have appeared in Shanghai. Currently, Yingqian Village, Zhuqiao City, Zhoupu City and Xinsheng Community, Zhuqiao City, Pudong New Area, Shanghai are listed as medium risk areas.
On November 21, Manzhouli, Hulunbuir, Inner Mongolia Autonomous Region, reported 2 confirmed cases of new local coronary pneumonia. According to the Hulunbuir City Health Commission, the city has launched a third-level early warning for the prevention and control of the new corona pneumonia epidemic, and will enter the early warning period on November 21, 2020.
In the last six months, there have been many “rebounds” of local domestic epidemics. According to incomplete statistics from the interface, there have been repeated outbreaks in 11 locations in Shulan, Jilin, Beijing, Urumqi, Xinjiang, Dalian, Liaoning, Shanwei, Guangdong, Qingdao, Shandong, Kashgar, Xinjiang, and the above 4 locations.
According to incomplete statistics on the interface, the duration of the outbreak in areas before November was more than half a month. Zhang Wenhong, head of the Shanghai New Coronary Pneumonia Clinical Treatment Expert Team, recently said that with the arrival of winter and the spread of the global epidemic, the risk of imported cases will increase. The appearance of sporadic cases once again confirms the existence of risks in winter and spring, especially those related to logistics and the cold chain, a challenge that the entire national territory will face.
The number of confirmed local cases recovered an upward trend
Judging by the number of confirmed cases, Urumqi, Xinjiang has the highest number of final confirmed local cases with 826. Since August, the national epidemic situation has slowed down and the number of confirmed local cases in Shanwei, Guangdong and Qingdao, Shandong finally is less. Since the outbreak in Kashgar, Xinjiang, the number of confirmed local cases has shown an upward trend. Since November, local cases of new corona infection have been successively reported in some regions and there has been no large-scale epidemic trend.
The duration of the epidemic has steadily decreased
Recently, the duration of the local epidemic has steadily decreased. However, according to the interface statistics, as of November 22, the epidemics in Tianjin and Shanghai have lasted two weeks, and the number of confirmed cases in the local area continues to rise. Finally, the duration of the epidemic will be extended again.
Interprovincial transmission is gradually decreasing
From the perspective of the spread of the epidemic, according to incomplete statistics on the interface, among the various local epidemics that broke out before August, there are more cases of interprovincial transmission. Among local epidemics since August, only Shanghai has spread to the provinces. On November 10, Anhui added 1 newly confirmed case locally, which was related to the confirmed case in Shanghai.
At the beginning of the epidemic, most people were infected without symptoms.
According to the interface statistics, there were asymptomatic infections in Urumqi, Xinjiang, Qingdao, Shandong and Kashgar, Xinjiang on the first day of the epidemic. Three new cases of asymptomatic infection were added on the first day of the outbreak in Qingdao, Shandong, and one case of asymptomatic infection was reported on the first day of the outbreak in Kashgar, Xinjiang. Among them, a total of 164 people infected with the new corona virus were found in Kashgar, Xinjiang, 3 days before the outbreak, all of whom were asymptomatic.
In the first week after the outbreak, the number of new asymptomatic infections in Urumqi, Liaoning, Shanwei, Guangdong, and Kashgar, Xinjiang, exceeded the number of confirmed cases.
Nucleic acid detection capabilities have been vastly improved
Since the local epidemic broke out, the speed of nucleic acid testing has increased in several places. On August 2, Dalian, Liaoning’s daily nucleic acid analysis capacity exceeded one million people. He has achieved 3 nucleic acid tests in medium risk areas and 4 nucleic acid tests in high risk areas. In 25 days, the number of nucleic acid testing institutions in Beijing has nearly doubled and the speed of nucleic acid testing has increased nearly five times. During the two local epidemics in Xinjiang, more than two rounds of nucleic acid testing were carried out in key areas. There are currently 125 nucleic acid testing institutions in Shanghai, and the maximum daily testing capacity can reach 621,000 copies per tube per person.
The source of the virus is mainly related to the link in the cold chain.
In the process of tracing the origin of the epidemic, the origin of the virus in Beijing, Dalian in Liaoning, Qingdao in Shandong and Tianjin were all related to the cold chain. According to the statistics of the interface, the nucleic acid test of imported food from the cold chain in many places of the country was positive. Wu Zunyou, chief epidemiologist at the Chinese Center for Disease Control and Prevention, once said that increasing evidence shows that frozen seafood or meat products can introduce viruses from affected countries into China.
Open and transparent epidemic information
During the epidemic, all localities held intensive press conferences on epidemic prevention and control to disseminate the latest advances in epidemic prevention and control in a timely manner to ensure openness and transparency of information on epidemics.
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Editor in charge: Chen Zhijie
