Tianjin 110 days no new local case record is broken where does the virus come from?

 Tianjin 110 days no new local case record is broken where does the virus come from?

Zhang Ying, deputy director of Tianjin CDC, briefed reporters. Hu Chunyan, reporter of China Youth Daily and China youth.com

A novel coronavirus pneumonia, novel coronavirus pneumonia, novel coronavirus pneumonia, is now in the hospital. The 22 year old new crown pneumonia patient is currently the only new hospital in Tianjin. The outbreak of the new crown pneumonia has broken the record of 110 consecutive days of no new cases of pneumonia in the new territories in Tianjin. On June 19, Zhang Ying, deputy director of Tianjin CDC, introduced to Zhongqing daily, zhongqing.com, we havent found the source of infection yet.

The case was reported by Tianjin CDC on June 17. The patient is a kitchen helper in the western restaurant of kanglaide Hotel, Tianjin, and is a light patient. According to Zhang Ying, Tianjin has completed the screening of the patients close contacts, suspected exposed people and their working and living environment as soon as possible. At present, the nucleic acid test and serum antibody test results of all samples are negative. According to the epidemiological survey results, it cant be determined that they are related to the latest outbreak in Beijing.

It is worth noting that the man stayed in Tianjin 14 days before the onset of the disease, with no history of going out, no suspected cases and confirmed cases of contact. Before his onset, there had been no new cases in Tianjin for 110 consecutive days. Where did he get the infection? This has become a social concern.

Zhang Ying is known as Tianjin Sherlock Holmes for tracking the virus accurately in the previous new crown epidemic. Zhang Ying and his colleagues immediately launched a hunt for the virus after the news that the patients nucleic acid test results were positive was first reported to the Tianjin CDC. Zhang Yings rich experience in fighting with the virus tells her that the most likely way to win is to contact the confirmed cases, suspected cases or asymptomatic infections. It is obvious that there have been no new cases in Tianjin for several months in a row. The virus can only be transmitted from the outside, either from the inbound infected or from the high-risk areas of the epidemic in China.

At present, China has taken strict isolation and control measures for the entry personnel. Therefore, the disease control personnel in Tianjin pay close attention to the contact history of the patient with the agricultural products wholesale market in Beijing Xinfadi, where the epidemic occurred on June 11. Beijing and Tianjin are close to each other and have close personnel exchanges. The new birthplace is also the most easily associated source of infection. However, the disease control personnel investigated 1137 suspicious exposed people such as family members, colleagues, residents in the same building, as well as dining, medical treatment, passengers and hotel guests at the same time. After epidemiological investigation, the results showed that these people had no direct or indirect contact history with the new development area of Beijing.

According to the epidemiological survey, so far, all the test results of these people are negative. The mothers and colleagues who have the closest contact with the patients have no symptoms or suspected symptoms at present, and we are still in the process of further observation, Zhang said

She pointed out to reporters that the relevant epidemic situation in Beijings new development area reminds us that exposure to fresh products such as polluted aquatic products and meat, as well as exposure to the polluted environment, may also be infected. The patient in Tianjin is a chef in the western restaurant of the hotel. Since May 30, he has been cleaning dishes and chopsticks in the staff restaurant, occasionally cleaning frozen seafood ingredients.

Disease control personnel quickly locked in the food and environment that the patient might be exposed to. First of all, all meat and aquatic products sealed in cold storage and kitchen of Conrad Hotel are tested for nucleic acid by smearing the materials; the whole chain information of origin, transportation and storage of 13 kinds of articles in 26 supply channels of the hotel is traced back; samples of meat and aquatic products and their outer packaging before rough processing are collected from three wholesale markets in Tianjin. The nucleic acid test results of these samples were all negative.

In addition, the test results of 18 kinds of environmental samples from the hotel and the patients residence, such as door handle, faucet, kitchen utensils, refrigerator, garbage can, air conditioning, sewer, clothing, kitchen top, etc., were also negative.

Many netizens have raised several questions about this: Why did the patient go to the fever clinic and not be isolated, but was not admitted until the nucleic acid was positive? Why cant subway and other public places detect fever?

Zhang Ying said that the novel coronavirus pneumonia was not typical. The first patient had no epidemiological history. He had not left Tianjin for 14 days before the onset of the disease and had no history of contact with other cases. According to the current definition of the new crown pneumonia treatment plan, he did not belong to the monitored population. Secondly, his clinical symptoms are mild, only slight fever and dry throat, no chest imaging changes, so before doctors get the nucleic acid test results, they can only preliminarily determine him as other diseases.

This kind of confirmed patient without epidemiological history is very rare in the whole country. Zhang Ying said that this also reminds everyone to upgrade the management method of fever outpatient service, all cases coming to fever outpatient service should be managed according to suspicious cases, and it is necessary to wait until the nucleic acid test results come out to let patients leave.

Through long-term communication with the patient, Zhang Ying learned that the patient had taken drugs at home, which was the main reason that the subway temperature measuring equipment failed to detect it. The patient also said he wore a mask all the way on the subway.

Wearing masks in public places protects both yourself and others. Zhang Ying also reminded that in addition to the need for citizens to use their mobile phones to scan health codes at the entrance of Tianjin Metro, there are also code scanning signs outside each carriage door. She noted that many people often neglect to scan the code before entering the car. This patient did not scan the code before entering the car, which greatly increased the scope of screening close contacts.

In order to prevent the spread of the epidemic, Tianjin quickly carried out epidemiological investigation, disinfected the patients workplace and residence, and tracked the high-risk exposure groups such as close contacts. All regions carry out night-to-night screening, management, nucleic acid testing and other work for the target population. Because the source of the virus is not clear, Tianjin has expanded the scope of screening. On the one hand, all close contacts of the patient were isolated and controlled. According to the epidemiological investigation, 353 close contacts were identified, but the number of nucleic acids detected and isolation measures implemented was far higher than this number. At present, 925 nucleic acid samples and 368 serological samples have been collected, all of which are negative. 865 people were observed by centralized or home isolation medicine. That is to say, these key groups have been effectively controlled and will not cause a wider range of infections.

On the other hand, Tianjin has also upgraded its control measures for key sites. The hotel where the patient works and the community where he lives are strictly managed. At the same time, Tianjins public places, especially closed places, have also strengthened regulatory measures.

In the interview, Zhang Ying reminded that we should pay special attention to the supervision of the agricultural trade market and wholesale market, not only the wholesale market of agricultural products, but also other wholesale markets are often densely populated, some are also in a closed space.

In order to make fever clinic become the outpost of new crown epidemic prevention and control, Tianjin Health and Health Commission recently interviewed the main principals of some medical institutions. In view of the problems such as unclear identification of some hospitals, patients leaving the hospital after arriving at fever clinic by themselves, patients going to see a doctor in some periods of time, and long waiting time for nucleic acid detection, etc., 6 measures were put forward to strengthen the rectification. In particular, we should strengthen the temperature monitoring and information registration of patients, and realize the closed management of the whole process of fever clinic. The patients with fever and respiratory symptoms shall be strictly closed and managed. They must receive strict nucleic acid test and clinical investigation in the fever clinic and shall not leave the hospital. Implement the first diagnosis responsibility to ensure the timely detection, rapid disposal, precise control and effective treatment of the epidemic.

Zhang Ying said that from the current situation of investigation, flow and detection, the overall environment of Tianjin is safe, residents do not need to panic, can work and study normally, but must do a good job in self-protection.

The investigation of the source of infection in this case is still continuing. On June 19, Tianjin CDC sent the virus strain of the case to China CDC for genetic testing. Zhang Ying said that she is waiting for the results of gene sequencing, hoping that the results will help the disease control personnel in the next step.

(function(){( window.slotbydup=window .slotbydup||[]).push({id:u6056789,container:ssp_ 6056789, async:true Beijing, China, 22 novel coronavirus pneumonia cases were diagnosed yesterday, which involved 3 districts and one map. Beijing was known to have 205 new cases in 9 days. The basic situation of the hospital was due to the prevention and control of hospital problems. The heads of 4 medical institutions in Beijing were interviewed. The source: China Youth Daily: Hu Chunyan editor in charge: Ji Ke b6492