News 1+1丨How to prevent the spread of COVID-19 from imported cold-chain food from material to person? Pay attention to these matters →
In recent days, news about the domestic new crown pneumonia epidemic has become the focus of public attention in the media. There have been confirmed local cases in many places in the country. Let's first look at a group of media reports.
On November 7th, Dezhou City, Shandong detected a positive test for the new coronavirus nucleic acid on the packaging of an imported cold chain product.
On November 8th, a new cold storage worker in Tianjin has a positive nucleic acid test, which is a confirmed case of the new crown.
On November 9th, Tianjin added an asymptomatic patient who was a truck driver who had been in the cold to pull goods.
On November 9th, there was a new confirmed case in Shanghai. The case was carried out at Pudong Airport.
On November 10, a new crown case was confirmed in Yingshang County, Fuyang, Anhui, who was a close contact of the confirmed case in Shanghai yesterday.
Under normalized prevention and control, it is not surprising that there have been sporadic recurrences of epidemics everywhere, but on the other hand, it is also reminding us that risks still exist objectively and the string of prevention and control must be tightened.
Especially when we combed and found that in the past few months, the outer packaging of cold chain foods has successively been positive for nucleic acid tests. "Frozen food" has become a key word that we cannot avoid in the epidemic.
The confirmed case found again in Tianjin originated from a report from Dezhou City, Shandong Province on the evening of November 7 that a batch of frozen German pork imported from Tianjin Port was found to have a positive nucleic acid test.
Upon receipt of the notification, Tianjin immediately launched nucleic acid testing on relevant personnel.
It only took a few hours. In the early morning of the 8th, the test results showed that a cold storage loading and unloading worker in the Sino-Singapore Tianjin Eco-city Hailian cold storage tested positive for nucleic acid. This is also the 138th local case in Tianjin.
He Peng, spokesperson of the Tianjin Municipal Health Commission
: The patient had a history of contact with imported cold-chain foods and no history of going out 14 days before the onset of illness. There is no doubt that the patient has a history of contact with confirmed cases, and has no contact with patients with fever or respiratory symptoms.
The patient participated in the company's imported frozen food handling work on November 4.
The press conference that day also announced the complete trajectory of this batch of imported cold chain foods.
After investigation, this batch of frozen pork knuckles, which were positively detected on the outer packaging, came from Bremerhaven, Germany, and arrived in Tianjin on October 19; on November 4, the shipment was transported from the Pacific Wharf to Hailian Cold Storage, where the case was in this cold storage. Participated in cargo handling; on November 5, all the goods were transported to Dezhou, Shandong; on November 7, positive was detected in Dezhou.
From entry to detection, the virus survived for nearly 20 days in the cold chain state.
In the early hours of yesterday morning, whole-genome sequencing results showed that Tianjin’s 138th local case was highly similar to the strains circulating in North America from March to June.
It also proves once again that long-distance transportation in the cold chain may spread the new coronavirus.
He Peng, spokesperson of Tianjin Municipal Health Commission
: This requires that we must always adhere to the strategy of mutual defense, especially for cold chain food practitioners and related personnel. Their health is the basis for preventing the new crown virus from contaminating cold chain food. .
At 14:00 on November 9th, Tianjin issued another information, adding a new asymptomatic infected person, a truck driver, had gone to Hailian cold storage to pull goods.
On the same day, Hangu Street in Binhai New Area, Zone A and Zone B of the Central Fishing Port Cold Chain Logistics Zone were designated as medium-risk areas.
At the same time, Tianjin has begun to implement the “two-all” policy for people involved in the cold chain and related goods, that is, for cold chain logistics products and goods, it must be fully covered, traceable, queryable, and fully inspected. Logistics practitioners must cover all inspections.
At 7:35 this morning, a nucleic acid test conducted on cold chain practitioners and frozen goods in the city found that a mixed sample of a human specimen and two food items in Nankai District, the new coronary pneumonia virus nucleic acid test was weakly positive.
For safety reasons, Nankai District quickly adopted temporary sealing and control measures against the Jiamei Miyun Vegetable Market, Tianyou City, and the aquatic product business department of "Heshifa".
Relevant personnel were sent to designated isolation hospitals, and the Municipal Center for Disease Control and Prevention also sent professionals to carry out on-site guidance and disposal.
At 11:30 in the morning, after another review by the Nankai District Disease Control Department, all three samples were negative.
In addition, during the "two full coverage" investigations, another case of asymptomatic infection was found at around 10 o'clock this morning in Tianjin, a cold chain porter in Dongjiang Port in Binhai New Area.
Liang Chunzao, Deputy Chief Commander of Tianjin Binhai New Area Prevention and Control Headquarters
: After the emergence of the case, we started the epidemiological traceability work
as soon as
possible. After traceability, the evidence points that can now be obtained are from objects to people. Spread of the virus.
Liang Chunzao, Deputy Chief Commander of the Prevention and Control Headquarters of Tianjin Binhai New Area
: He has not been to the place where the epidemic occurred before the confirmed case, and has not been in contact with sick cases, and has not been in contact with patients with fever, so he is the only one The route of infection is from object to person; according to the investigation, close contacts of confirmed cases and close contacts of close contacts are all negative; the complete gene sequencing of confirmed cases is highly similar to the strains circulating in North America, and no confirmed cases have been. Overseas, so according to these points, it is very likely to be from things to people.
There is no direct relationship between asymptomatic patients and confirmed cases. Their common relationship has been to Hailian cold storage and they have no direct contact. Therefore, asymptomatic infections are likely to be from objects to people.
Tianjin is an important distribution center for frozen products in the world. Now it conducts full coverage testing for cold chains and cold storages, as well as full coverage testing for all involved staff.
As of 5 o'clock this afternoon, a total of 1,275 related staff have been investigated, of which 1,058 have been tested for nucleic acid, and related work is still in progress. The results of those who have undergone nucleic acid testing are all negative, and more than 5,000 have been taken. All samples were also negative.
This afternoon, Fuyang, Anhui announced a case of Shanghai-linked new coronary pneumonia.
Before returning to Yingshang County, Anhui Province, the case, along with the confirmed case in Shanghai yesterday, was engaged in cargo handling work at Shanghai Pudong Airport. He always wore a mask at the workplace and took his temperature every time he entered the workplace.
Just yesterday, Shanghai held a press conference to report the situation of the confirmed case Wang Moumou. The case self-reported that since April 8, he has been carrying out transport work at the Cargo Terminal of the West Airline of Pudong Airport and has never left Shanghai. .
Wu Jinglei, director of the Shanghai Municipal Health Commission:
According to the current investigation, the patient himself has not been exposed to frozen foods recently, and his work and the trajectory before the diagnosis are not related to the third CIIE.
In accordance with the relevant requirements of the State Council’s joint prevention and control mechanism, the Municipal Epidemic Prevention and Control Headquarters decided to list Yingqian Village, Zhuqiao Town, Pudong New Area as a medium-risk area, and the risk levels of other areas in Shanghai remain unchanged.
At the same time, with regard to frozen food, disease control departments in many parts of the country have recently issued reminders to consumers and made recommendations on purchase and consumption.
The Beijing Centers for Disease Control and Prevention recommends:
First of all, when buying fresh products in regular supermarkets or markets, you can use disposable plastic bags to wrap your hands for selection, avoid direct contact with your hands, and wear masks correctly.
Wash your hands promptly after shopping. Before washing your hands, do not touch your mouth, nose, eyes, etc.
Keep the kitchen and utensils hygienic and clean during cleaning and processing, and wash your hands before handling food.
And how to effectively prevent the new crown pneumonia epidemic from importing the risk of imported cold chain food, at the national level, yesterday, the General Administration of Customs, in conjunction with the Ministry of Transport, the National Health Commission and other departments, jointly issued the "Preventive Comprehensive Disinfection of Imported Cold Chain Food "Work Plan", the scope of application of the plan is: the loading and transportation of imported cold chain food, the disinfection of the inner and outer packaging of the product; the division of labor between customs, transportation, sanitation, market supervision, local governments, and related production and business units has been clarified one by one.
The plan requires that all localities implement closed-loop control and traceability for imported cold chain food.
At the same time, the customs department should strengthen the inspection of imported cold chain foods.
If the test result is positive, it shall be returned or destroyed according to regulations.
If the test result is negative, preventive and comprehensive disinfection treatment shall be implemented before the imported cold chain food comes into contact with people in China for the first time.
After the disinfection is completed, the disinfection unit shall issue a certificate that the batch of goods has been disinfected.
The plan also stipulates that the port disinfection method of imported cold chain food shall be determined by the customs, and the disinfection method of imported cold chain food after entry shall be determined by the local people’s government in accordance with the "Technical Guidelines for the Prevention and Control of New Coronavirus in Cold Chain Food Production and Operation Process" and related regulations determine.
We found that since June this year, at least 10 provinces across the country have successively detected positive for the new coronavirus in cold chain frozen products.
On July 03, the outer packaging of frozen shrimp produced in Xiamen, Fujian, Ecuador
On July 3, Liaoning Dalian Ecuador produced frozen shrimp outer packaging
On July 14th, Jiangxi Pingxiang Ecuador produced frozen shrimp packaging
On July 14th, Chongqing Ecuador produced frozen shrimp packaging
On July 16th, Yunnan Ecuador produced frozen shrimp packaging
Environmental samples of cold storage food and processing workshops of Dalian Kaiyang Seafood in Liaoning on July 23
On August 11, the outer packaging of imported frozen seafood products in Yantai, Shandong
The outer packaging of frozen Ecuadorian shrimp imported from Wuhu, Anhui on August 12
The surface of Brazilian frozen chicken wings imported from Shenzhen, Guangdong on August 13
On August 13th, Shaanxi Xi’an imported the outer packaging of Ecuadorian frozen white shrimp
Live virus was isolated from the outer packaging of frozen cod imported from Qingdao, Shandong on October 17
October 29, Shandong Rushan imported frozen pork products and packaging
The outer packaging of frozen pork imported from Yantai, Shandong on October 29
On November 07, the outer packaging of frozen hairtail products imported from India in Taiyuan, Shanxi
November 07, Shandong Dezhou, Germany imported frozen pork outer packaging
Environmental samples of Tianjin Hailian cold storage on November 08
On November 9th, Tianjin Xinhuiyang Cold Storage Imported Hairtail Packaging
(Source: Incomplete statistics according to official reports)
From this perspective, when the prevention and control department once again upgrades the epidemic prevention measures for imported cold chain food, the necessity can also be seen, and it is also due to the scientific and precise response taken according to the actual situation.
Jiang Qingwu, a professor at the School of Public Health of Fudan University
: The virus can survive for a long time in low temperature conditions, while the temperature of the cold chain is very low, so the virus can survive for several weeks or months under such conditions. possible.
After the outbreak in the new place, there is an outbreak caused by imported food almost every month. Therefore, it is necessary to develop a standardized disinfection plan for cold chain food after entry. We must strengthen the import freezing Food management must implement this plan.
The plan stipulates that frozen food must be disinfected before entering the country, emphasizes the need to strengthen testing, and stipulates the responsibilities of relevant departments. Once the virus is found in frozen food, it must be destroyed, which will greatly reduce the occurrence of epidemics.
Epidemic prevention and control is not only a deterrent but also a tug of war.
Faced with the new risks of the current epidemic, we need to divide labor scientifically, compact responsibilities, and form a closed-loop system of the whole process through meticulous and precise prevention and control, so that no link is "dropped."
(CCTV reporter Wu Wei, Sun Qiang, Wang Jinglei, Bi Bochao)