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Anisakiasis is caused by the ingestion of larvae of several species of ascaridoid nematodes (roundworms), which are sometimes called “herringworm”, “codworm”, or “sealworm”, in undercooked marine fish.
Anisakis share the common features of all nematodes: the vermiform body plan, round in cross section, and a lack of segmentation. The body cavity is reduced to a narrow pseudocoel. The mouth is located anteriorly and surrounded by projections used in feeding and sensation, with the anus slightly offset from the posterior.
Anisakiasis (also known as herring worm disease) is a parasitic disease caused by nematodes (worms) that attach to the walls of the esophagus, stomach, or intestine. Anisakiasis is most commonly found in areas where eating raw fish is popular, such as Japan.
Anisakiasis is a parasitic infection where worms attach to parts of the gastrointestinal tract. It occurs when a person ingests raw or undercooked seafood. Anisakid nematodes are a type of ...
Anisakiasis (also known as herring worm disease) is a parasitic disease caused by nematodes (worms) that attach to the walls of the esophagus, stomach, or intestine. View All
The Anisakis worm is a parasite that can cause nasty infections in humans who enjoy eating raw fish. It is 2 cm long and is sometimes coughed up after ingesting it in raw or undercooked fish. Species Name: Anisakis simplex. Type of Microbe: Parasitic nematode (roundworm) SilviaMilanova / Getty Images.
Image from the Centers of Disease Control and Prevention, Global Health, Division of Parasitic Diseases and Malaria. Symptoms and Signs of Anisakiasis. Symptoms of gastric anisakiasis typically include abdominal pain, nausea, and vomiting within hours of ingesting the larvae.
Image from the Centers of Disease Control and Prevention, Global Health, Division of Parasitic Diseases and Malaria. Symptoms and Signs of Anisakiasis. Symptoms of gastric anisakiasis typically include abdominal pain, nausea, and vomiting within hours of ingesting the larvae.
The Anisakidae are a family of intestinal nematodes (roundworms). The larvae of these worms can cause anisakiasis when ingested by humans, in raw or insufficiently cooked fish. Anisakidae worms can infect many species of fish, birds, mammals and even reptiles.
Differential morphological features among third stage larvae (L3) of nematodes that frequently occur in fish and that can potentially cause anisakidosis. Left: A freshly collected Anisakis L3 type I from the body cavity of a blue whiting, host fish.