infectious diseases
Anisakiasis
Key Points
Humans acquireAnisakiswhen they consume the intermediate hosts (fish or squid) that are raw or undercooked; thus, anisakiasis is common in Japan and other cultures where raw fish is traditionally consumed. Anisakiasis typically causes abdominal pain, nausea, and vomiting within hours of ingesting the larvae; an inflammatory mass may form in the small intestine and symptoms may resemble Crohn disease. Anisakiasis typically resolves spontaneously after several weeks. Do upper endoscopy to diagnose anisakiasis. Endoscopic removal of the larvae is curative. Proper freezing conditions prevent anisakiasis in sushi. 