County of Los Angeles
Department of Public Health
Acute Communicable Disease Control
313 N. Figueroa Street, #212
Los Angeles, CA 90012
Phone: (213) 240-7941
Fax: (213) 482-4856
Anisakiasis is parasitic disease caused by the
accidental ingestion of larvae of the nematodes
(roundworms) Anisakis simplex and
Pseudoterranova decipiens. This occurs by eating raw
or undercooked infected marine fish, squid or octopus.
Within hours after ingestion, infected larvae penetrate
the gastric and intestinal mucosa and symptoms of
violent abdominal pain, nausea, and vomiting may occur.
Direct transmission from person to person does not
occur. Treatment is surgical or endoscopic removal.
Public Health has made reasonable efforts to provide accurate translation. However, no computerized translation is perfect and is not intended to replace traditional translation methods. If questions arise concerning the accuracy of the information, please refer to the English edition of the website, which is the official version.