China News Client, Beijing, June 14: More than two people have been diagnosed for two consecutive days, more than 40 people have positive pharyngeal swabs, and 40 environmentally positive samples...Beijing's new place has made the local epidemic once again the focus of public opinion.
In people's tracing discussion about the epidemic, salmon became a key clue for the first time. The person in charge of the Beijing Xinfadi Market said that the relevant department detected the new coronavirus from the cutting board of imported salmon. All major supermarkets and restaurants were moving, and salmon and related products were quickly removed overnight.
The public's panic and anxiety about salmon reached a peak for a while.
On June 13, the Beijing Xinfadi wholesale market was temporarily closed, and the police carried out traffic control on the surrounding area. China News Service reporter Zhang Yushe
New coronavirus detected on salmon cutting board
On the morning of the 13th, Pang Xinghuo, deputy director of the Beijing Center for Disease Control and Prevention, introduced at the press conference that in recent days, Beijing has continuously found a number of confirmed cases of local new coronary pneumonia. Except for one case notified by Liu Moumou on the 12th, he has left the history of Beijing. Six cases had no history of leaving Beijing in the past 2 weeks, and no history of contact between foreign personnel and Hubei personnel.
After epidemiological investigations, these cases all have a history of agricultural product wholesale market activity in the new place. By collecting external environmental specimens related to confirmed cases, there are positive reports of nucleic acid tests.
On the evening of the 12th, Zhang Yuxi, chairman of Beijing Xinfadi, said in an interview with the media that the relevant department detected the new crown virus from the cutting board of imported salmon, while other beef and mutton, pork, vegetables, fruits and related facilities No new coronavirus has been found.
From 3 o'clock on the 13th, the new place temporarily shut down the market, surveyed the market personnel and the external environmental pollution status, assessed the risk of infection, and carried out sanitary remediation and environmental elimination.
On June 13, the salmon in a supermarket in Fengtai District, Beijing has been removed. China News Service reporter Zhang Yushe
Supermarkets, restaurants quickly remove salmon products
Major supermarkets and supermarkets in Beijing, such as Fafa, Wumei and Carrefour, have removed all salmon overnight.
In addition, the continuous emergence of new cases in Beijing has a certain impact on the newly restarted Beijing catering market. Japanese food brands such as Matsuzuki Japanese Restaurant, Edo Mae Sushi, Wasai Fangju, Tokugawa Family, etc. have all urgently removed salmon and salmon related products, and the store has strengthened its prevention and control efforts again.
On the takeaway platform, on the 13th, it was reported that the hungry food shopping business removed seafood products. In response, did you feel hungry? There is no official response. The reporter checked the grocery shopping business and found that there are still seafood products on sale, but no salmon is on sale.
On the same day, in the Meituan grocery shopping and Carrefour takeaway business, a reporter from Chinanews.com saw that there were still seafood products for sale, but no salmon was found. Meituan grocery shopping also said that it has completely removed salmon products.
At the same time, some shopping malls, supermarkets, restaurants and other places across the country have also removed salmon.
For example, under the emergency deployment of the Sichuan Provincial Department of Commerce, the Sichuan Agricultural Products Circulation Association issued an emergency initiative, proposing that markets with chilled seafood business formats must urgently initiate high-level prevention and control measures, implement closed management, and strictly control personnel and The movement of vehicles, strict implementation of registration, temperature measurement, disinfection, inspection and other epidemic prevention work.
From the 13th, the wholesale market of Chengdu Agricultural Products Center will completely remove salmon products. The specific resale time is to be determined.
On the same day, the Nanjing Nanjing Chamber of Commerce for Food and Drugs issued a proposal on the prevention and control of the epidemic at this stage. It advocated that all catering enterprises in Nanjing should take strict precautions and take effective measures to prevent and control the food. Related dishes such as aquatic products.
In Zhejiang, the Hangzhou Market Supervision Bureau quickly launched a survey on the sales of salmon in large supermarkets on the 13th.
Data map: Seafood sold in supermarkets. Photo by Xie Yiguan
The salmon mystery: how to spread the chain?
——Where does China import salmon from?
In recent years, China's seafood imports have been at a high level, and salmon is very popular among consumers.
According to reports, China imports about 80,000 tons of chilled and frozen salmon each year. Chile, Norway, the Faroe Islands, Australia, Canada and other major sources of salmon imports, the import volume is increasing year by year.
Earlier, a market survey by the Norwegian Seafood Agency showed that in the first three quarters of 2019, exports of fresh Norwegian salmon to China rose by as much as 92%. Under its impetus, exports of Norwegian Arctic cod and Norwegian mackerel and other species to China also performed well .
In addition, 90% of consumers believe that the origin is very important when purchasing seafood. 44% of Chinese consumers regard Norway as their first choice for seafood.
However, some customs inspection and quarantine personnel said in an interview with the media that, in general, the customs mainly carry out common food-borne bacteria inspections on imported seafood or meat products.
The reporter consulted media reports that in recent years, Zhejiang, Shandong and other places have all experienced unsatisfactory testing of imported salmon. However, as of now, there is no evidence that the virus discovered this time is really from the salmon itself.
Data map: a seafood stall. Photo by Zuo Yukun
——How likely is salmon to be “poisoned”?
Jin Dongyan, a virology expert and medical professor at the University of Hong Kong, said that the possibility of salmon itself as a viral vector is very small.
He explained that seafood is unlikely to be a source of infection, because fish as a low-level organism, the transmission of fish virus to humans almost never happened. And there is no evidence that the virus can replicate in fish.
Yang Zhanqiu, professor of the Institute of Virology, Wuhan University School of Medicine, also believes that the new crown was detected from the cutting board of imported salmon, which means that the salmon on the board is contaminated, but it does not mean that it is necessarily infectious . The current research has not found the new crown virus It can be caused by salmon or aquatic product contamination.
Data Map: Salmon (Chinese-New Video Screenshot)
——If the salmon is contaminated, which link will be a loophole?
Although salmon is unlikely to be a viral vector, it is very likely to be contaminated and become a virus vector.
Zhu Yi, an associate professor at the School of Food Science and Technology of China Agricultural University, said: "It is highly likely that salmon is not infected by the new coronavirus, but only contaminated by the new coronavirus . At present, no infectious diseases common to humans and fish have been found."
Regarding the pollution route, Zhu Yi analyzed that there are many possibilities for salmon to be contaminated by virus. For example, the virus is attached to the surface due to liquid, air, hand contact, etc., and the survival period is prolonged by cold chain transportation. Eventually, the virus is left in Chopping board.
" Virus enters China through imported channels, this path is entirely possible. " Zhu Yi said that under low temperature and cold chain conditions, the survival time of the virus is significantly prolonged, and the salmon needs to be cut in the later period, and the contact time with people is the longest. . In the process of breeding, fishing, storage, transportation, division, and sale, if the droplets, sputum, feces, and urine of people infected with the new coronavirus are in contact, there is a possibility of contamination by the virus.
- panic, salmon can eat it?
Zeng Guang, the former chief researcher of epidemiology at the Chinese Center for Disease Control and Prevention, believes that whether the epidemic in Beijing’s new development is called “import” or “rebound” needs to be explored.
Salmon is eaten differently than other meats, and the public often eats them raw. Zeng Guang suggested that the virus test was found to be positive and the situation is unknown. It is not known what the source of the virus is. Before these problems are not identified, people should not eat salmon raw .
Lu Jiahai, a professor at the School of Public Health of Sun Yat-sen University and director of the One Health Research Center, believes that from the experience and lessons of multiple epidemic situations, to change the passive situation of epidemic prevention, the epidemic prevention gate must be moved forward. The target of this forward movement is animal practitioners, including Animals that sell animals, keep animals, trade animals, veterinary professionals, farmers and herdsmen are all high-risk groups. If you take the initiative to strengthen their detection, you can find out early that they are sentinel crowds. (Zhang Nilanglang comprehensive report)