The research team from Southern Agricultural University and Guangdong Academy of Agricultural Sciences has just published an article on the biomedical preprint website without peer review. < / P > < p > the scientists explained that the virus could survive on fish skin at temperatures as low as 4 ℃ (39 ﹤ f) for a longer period of time, enough to be detected after cross-border transportation. According to the report, a few weeks after the last diagnosis of new coronavirus infection in Beijing, the relevant departments had speculated that the new coronavirus was originated from chilled salmon, and resolutely suspended the import and sales. < / P > < p > after a period of panic, the follow-up investigation found that the possibility of transmission of fresh food was not very high, but it was difficult to avoid pollution during packaging and transportation, which was also agreed by who. < / P > < p > the team explained that one week was enough to allow the contaminated frozen products in the epidemic focus to be easily transported to another country, thus becoming a channel for the international spread of sars-cov-2. < / P > < p > unlike other foods, fish must be transported and sold at temperatures far below normal room temperature (25 ℃) (4 ℃). This means that the virus attached to seafood can survive for a long time. However, consumers need not worry too much because the virus will not infect fish. People who pay attention to hygiene should also know “thoroughly cooked food, safe and carefree”. According to who, sars-cov-2 is mainly transmitted through droplets, aerosols and toxic gas dust. Several studies have shown that aerosols may play a more important role in the spread of epidemics than previously known. Finally, although the new study has not been approved by peer review, the findings still provide important reference for health institutions to formulate food source pollution blocking policies. < / P > < p > before the global health crisis is effectively alleviated, please continue to follow the defense guidelines of “wash hands frequently, wear masks, avoid touching the mouth and nose, and keep social distance”. Didi Qingju bicycle has entered 150 cities