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Anisakiasis is an infection caused by ingestion of larvae from Anisakis, a type of parasitic worm that is often found in raw or undercooked fish. The symptoms that are most commonly associated with Anisakiasis manifest as a tingling sensation in the throat due to the larvae irritating the throat tissues if they are ingested, as well as severe abdominal pain as the larvae invade the intestinal tract. These symptoms result from the body's inflammatory response to the presence of the parasite, causing discomfort and indicating irritation in the digestive system.

Other options present symptoms that are not typically linked to Anisakiasis. Severe diarrhea and fever might suggest a bacterial infection or gastrointestinal illness rather than a parasitic infection like Anisakiasis. Fatigue and nausea could occur with many types of illness, while skin rash and headaches are more indicative of allergic reactions or other systemic infections, but not specifically Anisakiasis. Understanding the unique presentation of symptoms is crucial for accurate diagnosis and treatment.