At around 2 pm this afternoon, Changzhou City, Jiangsu Province reported a case of positive nucleic acid test after the quarantine of an overseas inbound person.
reported that the patient Zhang entered the country from Guangzhou from India on March 26 and underwent 14 days of isolation and medical observation locally. On April 9, Zhang took a flight (flight number ZH9675) to , Changzhou Benniu Airport , and then took a taxi back to his home in Blue Sky Garden Community. On April 11, Zhang underwent a routine nucleic acid test, and the result was positive. He was later diagnosed as an asymptomatic infected person with .
Beijing Daily (ID: Beijing_Daily) noticed that from the official announcement of activity trajectory, Zhang's activity trajectory involved airports, flights, visits, supermarkets, business halls, building materials stores, bathrooms and other public places.
reported that the Changzhou Municipal Command has implemented isolation treatment and epidemiological investigations on Zhang as required, conducted investigation, tracking and management of relevant contacts, and adopted closed management and disinfection measures in relevant places. As of 12:00 on April 12, all close contacts found were quarantined for medical observation as required, and nucleic acid sampling and testing were completed, and the nucleic acid test results were all negative.
Qingdao Last night, a case of
was reported to be close contacts in the same carriage
Beijing Daily (ID: Beijing_Daily) noticed that in less than 24 hours, the two places successively reported cases of positive nucleic acid tests after the centralized isolation period of entry from abroad, and both cases took planes or trains to go home across provinces after being released from quarantine.
At around 7 o'clock last night, Qingdao City, Shandong Province also reported a case of positive nucleic acid test after the centralized isolation period of overseas inbound personnel, and urgently searched for close contacts in the case in the same carriage (passengers who shared the bathroom with the person).
According to the Qingdao Municipal Health Commission, Zhang, a new confirmed case of imported cases from abroad, is a male, 38 years old, Chinese, from Qingdao, working in Italy. On March 26, 2021, he arrived in Nanjing by plane from , Milan, Italy, and was quarantined for 14 days in Nanjing for centralized medical observation. During this period, both nucleic acid and serum antibodies were tested negative.
April 9, after Zhang was released from centralized isolation in Nanjing, he took the G282 train from Nanjing South Station (5 carriage 11F, and went to the bathroom between carriage 5 and carriage 6 at around 19:00 on the way), and arrived at Qingdao Station at 21:38 on the same day. He was transferred to point-to-point centralized isolation point in Shibei District for medical observation.
htmlOn April 11, Zhang's nucleic acid test result was positive at the Qingdao North District Center for Disease Control and Prevention. Later, the expert group diagnosed as a confirmed case of new coronary pneumonia (normal type) and is currently in isolation and treatment in designated hospitals. 360 close contacts with have been traced, and all of them have been subject to centralized isolation and medical observation.Testing positive after being released from isolation is not uncommon
There was a case of infection by a person in the same car
Beijing Daily (ID: Beijing_Daily) found that it is not uncommon for overseas personnel to test positive for nucleic acid after being released from isolation, and there are also cases of close contacts on the same train being infected.
Jiangxi
According to the Jiangxi Provincial Health Commission, the patient Wu had worked in Zimbabwe , entered Nanjing on March 1, and completed centralized isolation observation on March 15, and was released from isolation after negative nucleic acid and serological tests. On the same day, he took the K783 train (Train 8, Bus 1, upper bed) back to Jiujiang, Jiangxi Province. On the way, he had a meal at the No. 9 dining cart for about an hour. On March 16, the nucleic acid test was positive and he was diagnosed as an asymptomatic infected person. On March 20, after it developed related symptoms, it became a confirmed case.
htmlOn March 25, Honggutan District, Nanchang City, Honggutan District, added 1 new case of asymptomatic new coronary pneumonia. Zhang Moumou is a close contact of the above-mentioned patients. He came to Nanchang City for a short business trip on March 16, and and Wu took the same train on the same carriage.
Henan
On March 24, 2021, a case of asymptomatic infection of new coronavirus pneumonia was found in Jiyuan Demonstration Zone of Henan Province.
This case, Li, worked in , Bangladesh , returned to China on March 7, and was isolated at the Hanting Hotel in Liwan District, Guangzhou. During this period, all nucleic acid tests were negative.On March 21, after Li was released from quarantine, he took a taxi to the train station, then walked to the long-distance bus station and took a bus back to Henan. The nucleic acid test was positive on March 23.
Shandong
According to the Jinan Municipal Health Commission of Shandong Province, on February 23, Jinan added 1 new confirmed case of imported COVID-19 from abroad.
This male case is a cargo ship crew member. He entered the country from , Taizhou, Jiangsu, and was subject to centralized isolation and medical observation in the local area. During the quarantine period, the nucleic acid and antibody tests of the new coronavirus were all negative. The centralized isolation was released on February 20. On February 21, the patient took the G882 high-speed train (3 carriage 08C) back to Jinan. On February 23, the nucleic acid was tested positive and was later diagnosed as a confirmed case of new coronary pneumonia.
nationwide implements 21-day centralized quarantine?
needs to consider economics and humanization and other factors. Why does
test positive after being released from isolation?
Previously, Wu Zunyou, chief epidemiologist of
epidemiology in the Chinese Center for Disease Control and Prevention, said at the press conference of the joint prevention and control mechanism that these phenomena have two reasons: on the one hand, each person has different clinical manifestations after being infected with the new coronavirus, so there are sometimes negative and sometimes positive phenomena; on the other hand, it also depends on the sampling quality, the sampling site is correct, and the sampling operation is standard, and the possibility of positive specimens will be high.When such cases appeared, many people also said: "14 days of centralized quarantine and medical observation for incoming personnel is not enough!"
In this regard, Wu Anhua, chief physician of the Infection Control Center of , Central South University Xiangya Hospital, said that the "14+7" or "14+7+7" model can reduce the risk of nucleic acid positive again after the release of quarantine, but it may not necessarily be promoted nationwide.
Wu Anhua said that the length of isolation is determined according to the incubation period of new coronary pneumonia. After the quarantine is released, the nucleic acid is positive and the diagnosis is still an isolated case. Localities can formulate isolation policies based on their respective circumstances. Whether 21-day centralized isolation is required nationwide should be implemented, and many other factors such as economic and humanization should be considered.
In the above cases, except for one close contact in the case reported by Nanchang , the close contacts and close contacts of the close contacts of the other patients who returned home by plane/train after being released from isolation were not infected. , on the one hand, is due to the good habit of wearing masks when riding the train; on the other hand, it is also the result of the timely and effective measures taken by the destination government's epidemic prevention and control command.
However, these cases also remind us that epidemic prevention and control is far from being as relaxed as possible. In addition to 's habit of insisting on wearing masks, washing hands frequently, and maintaining social distance between , those who meet the vaccination conditions must get the new crown vaccine as soon as possible, and protects themselves and their family and friends around them.
In addition, when incoming personnel return home across provinces and cities after being lifted from centralized isolation, most of them take planes/trains by themselves. Once the test is positive in the later stage, the news of "emergency searching for passengers on the same flight/car" has aroused public concerns. After is released from centralized quarantine, the corresponding prevention and control measures should be strengthened!
Source: Beijing Daily WeChat public account
Beijing Daily (ID: Beijing_Daily) Comprehensive report
Producer: Su Yue
Editing: Jianyi
Process editor: Guo Dan
Process editor: Guo Dan
