In the past two days, there has been new news of the epidemic, and everyone's nerves have become tense again.
On the evening of June 12, Zhang Yuxi, chairman of the Beijing Xinfadi Wholesale Market, said that the new coronavirus was detected from the cutting board of imported salmon during the sampling inspection of the relevant departments, and the source of the product came from the Beijing-Shenzhen seafood market.
As soon as the news came out, many supermarkets in Beijing and other places removed salmon from the shelves overnight.
Several accompanying issues have also bothered everyone and caused extensive discussion.
Do salmon really carry COVID-19?
Eating salmon may be infected with the new crown virus, can I still eat it?
Is fresh food still safe?
With doubts, let's unlock the answer.
Salmon can infect the new crown virus?
As a low-level non-mammal, salmon do not have the ability to transmit viruses to humans.
At present, the study has not found that the new crown virus can cause infection through salmon, but in the process of storage, transportation, sales, etc., there may be a risk of contamination by the virus due to the surrounding environment.
Specifically, the process of storage, transportation, sales, etc. is mainly divided into the following situations:
Storage conditions: If the temperature is not low enough, it may contaminate viruses or bacteria.
Shipping conditions: The packaging conditions during transportation are too poor, the transport time is too long, and the temperature is too high, there will be a risk of infection.
Transportation: If you stay in a high-risk area for too long or unintentionally unpack the box and other situations are not dealt with in time, it will also increase the risk of pollution.
Sales conditions: In the sales process, the surrounding environment is more complicated, and the sanitary conditions such as knives and plates for handling salmon meat are not passed, and they may also be contaminated by viruses.
Does eating salmon infect me with parasites?
Generally speaking, wild salmon do contain parasites, and artificially farmed salmon generally do not contain parasites if they contain antibiotics and other drugs.
But whether it is wild or farmed, it will more or less contain some microorganisms.
In addition, wild salmon may even contain pathogenic bacteria, but before selling, they will be treated through medicinal baths or freezes to meet national standards, and most of the pathogenic bacteria can be inactivated after low or high temperatures.
Therefore, the salmon we buy is almost free of parasites and pathogenic microorganisms.
If the purchase channel is formal, and the appropriate storage and cooking methods are adopted, it is generally not infected with parasites.
Is salmon really uneaten?
Salmon can be eaten, but these more important things should not be overlooked.
First of all, look for salmon in formal channels and eliminate dangers from the source.
Secondly, buying salmon back and freezing it at a temperature of -30 ° C for more than 24 hours can reduce the risk.
Finally, cook at high temperatures, be sure to eat fully cooked.
Low and high temperatures eliminate most germs and parasites, which may reduce the nutrition and taste of salmon, but for our health, food safety is the primary condition.
Sum up
There is currently no evidence
Salmon can infect the new crown virus
Salmon can be eaten
But pay attention to the purchase channels and storage conditions
meantime
Be sure to eat fully cooked
Source: Popular Science China
Expert: Zhang Chi (Lecturer, Food Science and Engineering, Beijing Technology and Business University)
Reviewer: Shaowei Liu (Deputy Director and Professor, Center for Food and Drug Regulatory Research, East China University of Science and Technology, Ph.D. in Food Science, Pennsylvania State University, USA, Ph.D., Kansas State University, USA)
Producer: Chen Zhichun
Editors: Kwan Kai-liang, Lee Yong-seok
Interns: Wenwen Lei, Luo Luo
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