Which parasite is associated with eating raw or undercooked fish?

The correct answer is associated with a specific type of parasite commonly linked to consuming raw or undercooked fish. Anisakis is a marine parasite that can infect fish and, consequently, humans who consume these infected fish without proper cooking. When humans ingest Anisakis larvae, they can experience symptoms such as abdominal pain, nausea, and vomiting due to an allergic reaction or direct infection. This is particularly relevant in contexts like sushi and ceviche, where fish is not cooked but rather served raw.

Other parasites, such as Giardia and Trichinella, are linked to different food sources. Giardia primarily originates from contaminated water and can be found in various foods that have been washed with that water. Trichinella is associated with undercooked pork and not fish, causing a different set of symptoms related to muscle infection. Shigella, on the other hand, is a bacterium often found in contaminated food or water, particularly linked to poor hygiene practices, and is not associated with fish. Understanding these distinctions is crucial for food safety and handling.