anisakiasis

Anisakiasis is a disease caused by the parasitism of third-stage larvae of the genus Anisakis in the gastrointestinal tract. Humans become infected by consuming raw marine fish containing live larvae. Acute phase clinical manifestations include nausea, vomiting, severe abdominal pain, and other gastrointestinal symptoms, accompanied by eosinophilia; the chronic phase is characterized by gastric or intestinal eosinophilic granulomas, which may be complicated by intestinal obstruction, intestinal perforation, and peritonitis. This disease is mostly seen in Japan, Europe, and the United States, with no case reports in China yet, but the infection rate of third-stage larvae of Anisakis in offshore fish along the southeastern coast is high.