Since last year, the cold chain has been regarded as an important part of the prevention and control of the new crown epidemic.
It is worth noting that 3 of the 71 dockers in the same batch did not wear masks for smoking, and 2 of them were infected
A research article published by the China Centers for Disease Control and Prevention, Qingdao Centers for Disease Control and Prevention in the latest issue of China CDC Weekly (English) confirmed the possibility of the new coronavirus spreading from the cold chain to humans
Academician of the Academy of Sciences The research team said that the investigation in this study isolated live viruses from cold chain products, which further confirmed the possibility of cold chain products spreading to humans through long-distance transportation
In fact, on October 17th last year, the official website of the China Centers for Disease Control and Prevention announced that, in the process of the traceability investigation of the new crown pneumonia epidemic in Qingdao, the China Centers for Disease Control and Prevention tested positive samples from the outer packaging of imported frozen cod carried by workers.
Starting from August 11, 2020, Qingdao will conduct nucleic acid testing every 14 days for high-risk groups, including those working in the processing, sales, and shipment of frozen seafood
From September 8 (the last nucleic acid test) to 23, 2020, two asymptomatically infected dockers did not live in the high-risk area of the epidemic, and did not come into contact with patients who were infected with the new crown virus or had a fever for unknown reasons in the high-risk area
Starting in July 2020, about 90 crew members have boarded the fishing trawler V (Trawler V)
Admiral The researchers performed a whole genome sequencing study on 2 case samples and 11 frozen cod samples with positive nucleic acid results
Six high viral load samples collected in frozen cod trays were used to further isolate the virus
The researchers proposed that, first of all, the study found that when the contaminated packaging has a high amount of virus, the virus can survive at low temperatures for several weeks to several months (currently the longest record is July to September), and the virus is stored in a cold storage It is still possible to infect employees months or years later
The researchers suggest that the management of the cold chain process should be strengthened globally to prevent new coronavirus contamination in the production of fish and meat
They also called on the international community to pay close attention to the cold chain spread of the new crown virus and establish an international response mechanism to prevent the new crown virus from pollution caused by cold chain food production, marine fishing and processing, and transportation
Focus on the new crown pneumonia epidemic
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