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Original Title: Be Alert! Tianjin Tested Positive Again, This Time It Was Flounder
After German pork knuckle, Indian frozen horsetail, and imported pork head,In Tianjin, another halibut smear sample was detected in a wholesale aquatic products store and tested positive for nucleic acid.
Tianjin is a major port city and a major distribution center for frozen products from all over the world. After this outbreak, our vigilance has been raised even more. At present, Tianjin has proposed the requirement of “comprehensive two”, which means that all sites involving cold chain cold storage will need to be tested for full coverage, as well as all personnel involved at these sites.
On the night of November 11, at the 152nd news conference on prevention and control of novel coronavirus pneumonia in Tianjin, Gu Qing, deputy director of the Municipal Health Commission and director of the Municipal Center for Control and Prevention of Diseases, presented that at 5:12 p.m. on November 11, 2020, the Municipal Health Commission received a report from the Municipal Center for Disease Control,The nucleic acid test result of a halibut smear sample from Jiequn Aquatic Products Wholesale Store in Taitou City, Jinghai District was positive, and confirmed to be positive after review by the Municipal Center for Disease Control and Prevention.
At present, Jinghai District has carried out the traceability of items and storage management and control of epidemic-related enterprises, and has promptly carried out epidemiological investigation and disposal. Nucleic acid testing has been performed on a total of 59 individuals exposed to positive specimens, their close contacts, and the exposed individuals in general found in the preliminary screening.The 23 people who have given results are all negative.Other results are pending.
Preliminary results of the traceability investigation show that this shipment comes from the Jinnan district. Jinnan District has tested 45 samples and the results are negative. Related tests are still ongoing. The Municipal Health Commission has dispatched experts from the Municipal Center for Disease Control and Prevention to the relevant districts for guidance and on-site disposal.
Nucleic acid test results for all Hangu Street members are negative
At 24:00 on the 9th, after Hangu Street Areas A and B in Binhai New Area and Central Fishing Port Cold Chain Logistics Zone were designated as medium risk areas, they were upgraded management and control immediately, nucleic acid testing was started for all employees on Hangu Street and two medium risk areas were delineated. .
Hangu Street has a registered population of 77,000. After hard work day and night, more than 65,000 people, including actual residents, temporary residents, and all personnel involved in the test, have undergone nucleic acid testing. The results of the nucleic acid test were obtained in the early morning of the 11th,The 65,000 were negative.
Central Fishing Port Cold Chain Logistics Zone A and B
Nucleic acid test results are negative
At the same time, the Binhai New Area immediately sealed and controlled Zones A and B of the central fishing port cold chain logistics area. There were 7 cold chain logistics companies in the area without residents. Currently, 11 cold chain practitioners are left behind for maintenance and operation, and the rest have been isolated and controlled. Nucleic acid test results for all named personnelAll negative.
Seven cold chain logistics companies involved a total of 370 cold chain practitioners. With the exception of the confirmed cases and 11 abandoned employees, the rest implemented isolation control measures and nucleic acid test results.All negative.
Binhai New Area has two 9500-square-meter department stores in Hailian cold storage, eight warehouses with internal and external environments, and 8900 tons of existing products. A total of 543 nucleic acid test samples, including 505 for food packaging and 38 for external environments, have both nucleic acid test results. It is negative. 1419 food packaging samples and environmental samples were taken from 6 other cold chain logistics companies, including 1,294 food packaging and 125 external environment samples, all nucleic acid test results were negative.
How was confirmed case 138 infected?
What caused the outbreak in Tianjin? In the CCTV “1 + 1 News” column, Liang Chunzao, deputy commander and deputy chief of the Tianjin Binhai New Area Prevention and Control Command, responded to this.
Liang Chunzao introduced that after the 138th confirmed local case appeared, Tianjin immediately began epidemiological traceability work. After tracing back to the source, the evidence obtained so far points from things to people.
① The confirmed case has not been in the place where the epidemic occurred before diagnosis, has not been in contact with other sick cases, and has not been in contact with patients with fever, that is, its only possible route of infection is ” from object to person “.
②In this case, the nucleic acid tests of the close contacts and the close contacts you contacted were all negative.
③Now that his virus has been sequenced with the entire gene, he belongs to the North American branch, so he has never been abroad for this case and has not contacted people abroad.
We can then determine that the current evidence points to the infection process from “things to people”.
How was a new case of asymptomatic infection discovered in Tianjin?
On the 10th another case of asymptomatic infection appeared in the Binhai New Area, how was it discovered?
Liang Chunzao introduced that on the morning of the 10th, it was learned that the nucleic acid test result of the infected person turned out to be positive during the “two full coverage investigations” of practitioners of the cold chain and frozen products in the new area. The patient was diagnosed in the afternoon and was asymptomatic. We will take action immediately.
The first is “stamp”. Binhai New Area immediately sealed and controlled a logistics park and residential area at the infected person’s workplace.
The second “traceability”. 15 of his close contacts and 4 close contacts were investigated. All were quarantined and analyzed for nucleic acid for the first time. The results have been published and all are negative.
The third “separation”. The 306 people who lived in the 4 buildings in the same community and the infected person and their close contacts were transferred overnight for centralized isolation and nucleic acid testing, all results were negative.
The fourth is the nucleic acid test of the 480 employees in the workplace of the infected person, and all the results are negative.
The fifth is to further expand the scope of testing. Nucleic acid tests were performed on the key personnel listed above and other personnel, a total of 4886 people, and all results were negative.
The sixth is to trace the origin of the imported frozen products that the infected person came into contact with and send them to the relevant provinces and cities.
Prevention and control of “things” become the focus
The Council of State issued an important document
The detection of a new positive coronavirus in the logistics link of the cold chain was not accidental. According to incomplete statistics, since this year positive nucleic acid tests have been found from imported frozen products in many parts of the country and there have been more than 20 related incidents.
During the traceability investigation of the new Qingdao corona pneumonia epidemic conducted by the Chinese Center for Disease Control and Prevention, live virus was detected and isolated from positive samples of imported frozen cod carried by workers. This confirms that the new coronavirus can be transmitted from person to person by “things.” Many industry experts said that prevention and control of “materials” should also be a focus of prevention and control.
On November 9, the Joint Prevention and Control Mechanism of the State Council issued the “Work Plan for Preventive and Comprehensive Disinfection of Imported Cold Chain Foods”, which requires the completion of the entire control and traceability process in closed circuit, and minimizes the risk of importation of the new corona virus through imported cold chain food.
The “Plan” requires strengthening the verification of whether imported food from the cold chain is disinfected and preventing imported food from the cold chain that has not undergone a comprehensive preventive disinfection treatment from entering the market.
The “Plan” clarifies the responsibilities of each department, and also clarifies the entire work process, including the port link, cold chain transport, inbound and outbound links, circulation links and market links , and strengthens the coordination of epidemic prevention work among various departments.
Strictly prevent the epidemic from returning in the fall and winter.
How to prevent and control the cold chain?
Wu Zunyou, an epidemiology expert at the China Center for Disease Control and Prevention, suggested that the prevention and control of epidemics in the cold chain should be carried out in three inspections:
The first is to carry out sample inspections of imported products and the outer packaging to detect contaminated food in time;
The second is to conduct regular environmental sampling to detect contamination conditions for the cold chain commercial industry work environment, including transportation vehicles, cold storage, etc .;
The third is to perform nucleic acid screening at least once a week for cold chain professionals in order to detect early-stage infections in time, detect the epidemic in time, and extinguish the epidemic in time.
In terms of management, on the one hand, it is necessary to train all managers and professionals in the cold chain industry to strengthen the implementation of standardized prevention and control measures; on the other hand, it is necessary to periodically supervise the implementation of standardized prevention and control measures for the new corona epidemic in the cold chain industry. Check to find weak links and lock in risk points in time.
Well in everyday life
What about ordinary people?
Buy and eat fresh frozen products?
Beijing CDC Recommendations
Beijing Daily (ID: Beijing_Daily) Client Jinyun, News One Plus One, the website of the State Supervisory Commission of the Central Commission for Disciplinary Inspection, @ 人民日报
Source: Beijing Daily WeChat official account | Reporter Zhang Xiaoying
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