[Gastric anisakiasis cases in Cheju-do, Korea]

Area of Science:

• * Parasitology and Public Health
• * Gastroenterology

Context:

• * Human anisakiasis is caused by ingesting raw marine fish contaminated with Anisakidae nematode larvae.
• * Cases of anisakiasis involving gastric and intestinal migration have been reported in Korea.
• * A prospective study was conducted in Cheju-do from June 1989 to June 1992.

Purpose:

• * To investigate the prevalence and characteristics of human anisakiasis in Cheju-do, Korea.
• * To identify the specific Anisakidae larvae responsible for infections.
• * To determine the marine fish species implicated as sources of infection.

Summary:

• * One hundred and seven cases of gastric anisakiasis were diagnosed, primarily in adults aged 30-49.
• * Common symptoms included acute epigastric pain within 12-24 hours of consuming raw marine fish.
• * Endoscopic findings revealed gastric mucosal edema, erosion, ulceration, and hemorrhage. Identified larvae included Anisakis simplex (most prevalent) and Pseudoterranova decipiens. Infected fish species included yellow corvina, sea eel, ling, cuttlefish, and yellowtail. Larvae were also found in mackerel and rock cod.

Impact:

• * Anisakiasis is confirmed as a notable public health issue in Korea.
• * Highlights the importance of safe handling and consumption practices for marine fish.
• * Provides crucial data for public health interventions and consumer education regarding parasitic infections from seafood.