![]() ![]() Four physicians were infected with a fish tapeworm after eating raw salmon at a party. It turned out she had a roundworm in her intestines that she got from eating raw fish. For example, last year a New York woman underwent an operation for what doctors thought was appendicitis. These can sometimes cause illness in humans. Because it has been over a week since your unappetizing experience, it's extremely unlikely you have anything to worry about at this point.īesides cod worms, other types of worms have been found in raw fish. The severe abdominal pain generally leads to surgery, where the worm is then discovered. There, it produces symptoms resembling appendicitis, usually within a week of eating infected fish. In others, it can burrow into the small intestine. In a few people, however, a worm will burrow into the stomach, causing pain, nausea and vomiting, usually within 12 hours of ingestion. Most of the time, the worm will simply crawl up the esophagus (food tube leading to the stomach), where it is coughed out. In such cases, two kinds of problems can develop. Some people have been unfortunate enough to eat fish with live worms in them. Chances are you had a cod fillet sandwich containing tiny worms that had already been killed by freezing, cooking or both. But if you refrigerate a fish whole before cleaning it, the worms will have a chance to bore into the flesh of the fish.įreezing a fish for 24 to 72 hours at minus 4 degrees Fahrenheit or cooking it to 140 degrees F for at least 10 minutes will kill any living worms. The reason is that the worms live in the intestines of the fish and would be removed by cleaning. If the fish is freshly caught and immediately filleted, however, you won't run into this problem. If you eat fish raw or undercooked, you run a very small risk of infection with one of these worms. Raw eel and squid also can carry these worms, which grow up to an inch or so in length. But if you like sushi, don't give up hope - all is not lost.Ĭod worms can infect various saltwater fish, especially cod, Pacific rockfish (also called Pacific red snapper), whiting, mackerel, haddock, herring and salmon. Once a problem in Japan and other countries where raw fish is popular, fish worms are being seen more and more in America. Known as cod worms or herring worms, they technically belong to the anisakis family of worms. You probably came across a type of worm that infects certain saltwater fish. Chances are, you're not going to suffer any problems other than an unpleasant memory. ![]() Am I going to become infected with them? Are they harmful? Do I need to do anything about them, or is it too late?Ī. ![]() They sure were worms, and I get sick to my stomach just thinking about it. My boyfriend told me they were just part of the fish, but I took them to a biology teacher I know who looked at them under the microscope. I was eating a fish sandwich in a cafeteria when I looked down and noticed some small white worms in the fish. ![]()
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