The analysis is as follows:
Wild salmon have parasites. Therefore, eating sashimi will lead to the risk of parasitic diseases, and Japan is a country with a high incidence of parasitic diseases among developed countries. However, in real life, we don't eat pure wild salmon directly raw.
Freezing salmon at low temperature before eating can kill parasites. Usually, it can be frozen for about 24 hours at a low temperature of about MINUS 30 degrees Celsius, which is enough to kill parasites.
Also, farmed salmon are generally treated with deinsectization, so there are generally no parasites (but there may be residues of antibiotics).
Extended data
When eating raw salmon, everyone habitually adds mustard to the soy sauce dish. Many people think that a little mustard can kill the germs. Can mustard really kill bacteria?
"Whether it is eaten raw or cooked, the key lies in the treatment before eating. It is unscientific to hope that it will be sterilized during eating. " Wang hong, director of the Department of Gastroenterology, Guangzhou No.1 People's Hospital, said that scientific experiments have proved that only by soaking salmon in mustard with a very high concentration for more than 55 hours can a small amount of anisakis be killed.
Therefore, when we usually eat salmon fillets, we can't kill any parasites if we only touch a small amount of mustard juice for a short time.
Anisodes is a common parasite, and its larvae are about 1 cm to 3 cm long. Once infected, parasites may cause inflammation and edema of gastric mucosa, even bleeding and allergic reactions, damage the gastrointestinal tract, cause diarrhea, vomiting, etc., which may seriously lead to life-threatening.
"If you have symptoms of abdominal pain, vomiting, diarrhea or even allergies after eating sashimi, you may be infected with parasites. It is best to seek medical advice in time." Wang hong said that when seeing a doctor, it is necessary to tell the doctor about the situation of eating sashimi, including where to eat, how much to eat, and the reaction after eating.
Infection with anisakis is an infectious disease. If you go to a large general hospital for medical treatment, it is recommended to hang up the infection department or gastroenterology department. It should be noted that not all patients diagnosed with anisakis have symptoms, and some recessive infected people have no uncomfortable performance.
Some citizens listen to folk remedies and treat diseases by "swallowing loach raw", and there are not a few patients infected every year. Eating meat is safer after strict cooking, and the risk of being infected with parasites after eating it directly is great.