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[Pseudoterranovosis and sushi].

Leonor Jofré M¹, Patricia Neira O, Isabel Noemí H

¹Servicio de Pediatría, Hospital Clínico Universidad de Chile, Santiago, Chile. leonorjofre@gmail.com

Revista Chilena De Infectologia : Organo Oficial De La Sociedad Chilena De Infectologia

|June 27, 2008

Summary

Anisakis simplex and Pseudoterranova decipiens are emerging parasites from raw fish consumption. While often causing mild gastritis, these anisakid nematodes can lead to allergic reactions or intestinal issues.

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Area of Science:

Marine biology
Parasitology
Foodborne diseases

Background:

Increasing popularity of raw fish consumption (sushi, sashimi, cebiche) globally and in Chile.
Anisakidosis is an emerging foodborne parasitic zoonosis caused by the ingestion of third-stage larvae of Anisakis simplex or Pseudoterranova decipiens.
Larvae are acquired through consumption of raw or undercooked fish and seafood.

Observation:

A case of accidental ingestion of Pseudoterranova decipiens is reported in Chile.
Pseudoterranova decipiens is the most common anisakid species in Chile.
Larvae can cause acute gastritis, intestinal symptoms, or allergic reactions like urticaria, angioedema, and anaphylactic shock.

Findings:

In Chile, Pseudoterranova decipiens infections are generally non-invasive, rarely migrating beyond the stomach.
Symptoms are typically mild or absent, but can include gastritis.
Most larvae are spontaneously eliminated; some require endoscopic removal.

Implications:

Public health awareness regarding the risks of consuming raw or undercooked seafood is crucial.
Prevention strategies include thorough cooking or freezing of fish to inactivate larvae.
Early diagnosis and management are important for symptomatic cases.