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Acute intestinal anisakiasis in Spain: a fourth-stage Anisakis simplex larva
M f Rosales1, C Mascaró, C Fernandez
1Instituto de Biotenologia, Faculdad de Ciencias, Universidad de Granada, Granada, España.
Memorias Do Instituto Oswaldo Cruz
|December 10, 1999
Summary
A case of acute intestinal anisakiasis was reported in Spain, involving a fourth-stage larva of Anisakis simplex found in a patient who ate raw anchovies. This is the ninth human anisakiasis case in Spain.
Area of Science:
- Parasitology
- Gastroenterology
- Infectious Diseases
Background:
- Human anisakiasis is a foodborne parasitic infection caused by nematode larvae.
- Anisakis simplex is a common parasite found in marine fish.
Observation:
- A case of acute intestinal anisakiasis was documented in Jaén, Spain.
- A nematode larva was identified in the submucosa of the ileum in a female patient.
- The patient reported ingesting raw Engraulis encrasicholus (anchovies).
Findings:
- The larva was morphologically identified as a fourth-stage larva of Anisakis simplex.
- This represents the ninth reported case of human anisakiasis in Spain.
- It is likely the first documented instance of anisakiasis caused by a fourth-stage Anisakis simplex larva in Spain.
Implications:
- Highlights the risk of consuming raw or undercooked marine fish, particularly anchovies.
- Underscores the importance of accurate identification of Anisakis simplex larval stages in human infections.
- Contributes to the understanding of anisakiasis epidemiology in Spain and the potential for infection by different larval stages.
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