Surrounded salmon, how does the chain of outbreaks in Beijing string up?

, Beijing, June 14th, two consecutive days more than a number of people confirmed, more than 40 people swallow swabs positive, 40 environmental positive samples ... Beijing's new place, so that the local outbreak once again become the focus of public opinion.
salmon was a key clue in the discussion about the origin of the outbreak. The head of Beijing's Xinfa land market said authorities had detected the new coronavirus from a panel cutting imported salmon. Major business super, restaurant smell the wind and move, overnight quickly off the shelf salmon and its related products.
the public's panic and anxiety about salmon reached a peak for a time.on the morning of the 13th, Pang Xingfire, deputy director of the Beijing Cdc for Disease Control and Prevention, said at a press conference that Beijing has recently found a number of confirmed cases of local new coronary pneumonia, in addition to the 12th reported case of Liu a certain history of Beijing, the remaining 6 cases in the last 2 weeks no history of Beijing, no foreign personnel, Hubei personnel contact history.
epidemiological investigation, these cases have a history of agricultural wholesale market activities in new places, through the collection of confirmed cases related to external environmental specimens, nucleic acid positive report.
And on the evening of the 12th, Zhang Yuxuan, chairman of Beijing Xinfa, said in an interview with the media that the relevant departments from cutting imported salmon case board detected the new crown virus, while other beef and mutton, pork, vegetables, fruits and related facilities have not yet found the new crown virus.
3 p.m. on the 13th, the new land temporarily shut down the market, investigate the market related personnel and external environmental pollution status, assess the risk of infection, health treatment and environmental killing.Beijing's main commercial super-enterprise supermarket hair, goods, Carrefour has been off the shelves overnight all salmon.
addition, the emergence of new cases in Beijing has had an impact on the newly restarted Beijing food and beverage market. Matsushi Japanese cuisine, Edo sushi, and color play questions, Dechuan family and other Japanese brands have been urgently off the shelf salmon and salmon-related products, the store once again strengthened the prevention and control efforts.
takeaway platform, 13, there is news that hungry to buy food business off the shelf seafood products. In this regard, hungry said, there is no official response. Reporters in the hungry to buy vegetables business to check found that there are still seafood products for sale, but there is no salmon on sale.
same day, in the United States group to buy vegetables, Carrefour takeaway business, China News Network reporters saw that there are still seafood products for sale, but did not search for salmon. U.S. groups to buy vegetables also said that has been fully off the shelf salmon merchandise.
the same time, the country also has some local shopping malls, supermarkets, restaurants and so on have also been off the shelf salmon.
For example, under the emergency deployment of the Sichuan Provincial Department of Commerce, the Sichuan Agricultural Products Circulation Association issued an emergency initiative to put forward a market with frozen seafood business, must urgently initiate high-level prevention and control measures, implement closed management, strictly control the flow of personnel and vehicles, strictly implement registration, temperature measurement, disinfection, troubleshooting and other epidemic prevention work.
Chengdu Agricultural Products Center wholesale market from the 13th, a full range of salmon products, the specific re-sale time to be determined.
on the same day, Jiangsu Nanjing Restaurant Chamber of Commerce issued an initiative on the current stage of epidemic prevention and control, the initiative of Nanjing catering enterprises to strictly guard against death, and effectively do a good job of prevention and control measures, the initiative of food processing to be fully cooked, temporarily stop the supply of raw food animals, poultry, seafood and other related dishes.
in Zhejiang, Hangzhou Market Supervision Bureau also on the 13th quickly launched a large-scale commercial super salmon sales check.recent years, China's imports of sea products have been at a high level, of which salmon is favored by consumers.
It is reported that China imports about 80,000 tons of frozen and frozen salmon each year, chile, Norway, the Faroe Islands, Australia, Canada and other major sources of salmon imports, imports are increasing year by year.
earlier, a market survey by the Norwegian Sea Production Authority showed that in the first three quarters of 2019, Norwegian fresh salmon exports to China rose by as much as 92%, led by Norway's Arctic cod, Norwegian herring and other varieties of exports to China also performed well.
, 90 per cent of consumers believe that origin is important when shopping for products. Forty-four percent of Chinese consumers use Norway as their preferred source of sea products.
, however, there are customs inspection and quarantine personnel in an interview with the media, generally speaking, customs imports of seafood or meat products mainly carry out common food-based bacterial inspection.
reporters consult media reports, in recent years, Zhejiang, Shandong and other places have occurred in the import of salmon testing failed. So far, however, there is no evidence that the virus found actually came from the salmon itself., an expert in virology at the University of California, Sans, says the likelihood of salmon itself acting as a carrier of the virus is very small.
he explains that seafood is unlikely to be a source of infection because fish, as low-class organisms, are rarely transmitted to humans. And there is no evidence that the virus can replicate in fish.
Yang Zhanqiu, a professor of virus at Wuhan University's Department of Medicine, also believes that the detection of a new crown from a cutting imported salmon case board means that salmon on the board is contaminated or contaminated, but does not mean that it is necessarily contagious, and current research has not found that the new coronavirus can be transmitted through salmon or aquatic products pollution.salmon is unlikely to be a carrier of the virus, it is highly likely to be contaminated and become a vector of the virus.
Zhu Yi, an associate professor at the School of Food at The Agricultural University of China, said: "The great probability of salmon is not infected with the new coronavirus, but only contaminated by the new coronavirus, and no infectious diseases have been detected between humans and fish."
For the pollution route, Zhu Yi analysis, salmon contaminated with the virus there are many possibilities, such as liquid, air, hand contact and other ways, so that the virus attached to the surface, through cold chain transport to extend the survival period, and eventually the virus was left on the case board.
" virus enters China from imported channels, and this path is entirely possible. Zhu Yi said that under the cold chain conditions, the survival time of the virus is significantly longer, salmon later need to be cut, and human contact time is the longest. In these processes of breeding, fishing, storage and transportation, segmentation and sale, there is a possibility of contamination by the virus if they are exposed to droplets, sputum, feces and urine of people infected with the new coronavirus., a former chief epidemiologist at the China Center for Disease Control and Prevention, believes that whether the outbreak in Beijing's new areas is called "input" or "rebound" still needs to be explored.
salmon is eaten differently from other meats, and is often eaten raw by the public. Zeng Guang suggested that the virus has been found to be positive, the situation is unknown, do not know what its origin is, these problems have not been identified before, we do not eat salmon raw.
Lu Jiahai, a professor at Sun Yat-sen University's School of Public Health and director of the One Health Research Center, believes that from the lessons learned from multiple outbreaks, to change the passive situation of epidemic prevention, it is necessary to move the epidemic prevention pass forward, which is aimed at animal practitioners, including the sale of animals, animal breeding, trading animals, veterinary professionals, farmers and herders are high-risk groups. If you take the initiative to strengthen their detection, you can find out early, they are the sentinel crowd. (Reporting by Zhang Ni Lang lang)