When humans eat raw or undercooked infected fish or squid, they ingest nematode larvae. Once inside the human body, the larvae can invade the gastrointestinal tract. Eventually, the parasite dies and produces an inflamed mass in the esophagus, stomach, or intestine.
Are fish parasites harmful to humans?
Fish roundworms cause a condition in humans called anisakiasis. According to Centres for Disease Control in the USA, “symptoms of this infection are abdominal pain, nausea, vomiting, abdominal distention, diarrhoea, blood and mucus in stool, and mild fever.
What happens if you eat food with parasites?
Its usually found in water or food thats been contaminated with feces containing the parasite. An infection with Giardia is known as giardiasis. When it comes to food, you get giardiasis most commonly by eating undercooked pork, lamb, or wild game. Symptoms of infection include cramps, gas, diarrhea, and nausea.
What happens if you eat salmon with parasites?
These and other types of tapeworms have been found in wild salmon from Alaska and Japan — and in the digestive tracts of people who have eaten raw salmon from those areas ( 3 , 4 ). Symptoms of a helminth infection include weight loss, abdominal pain, diarrhea, and in some cases anemia.