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Fatal strongyloidiasis in a puppy from France
  1. Gilles Bourgoin1,2,
  2. Pierre Jacquet-Viallet3 and
  3. Lionel Zenner1,2
  1. 1 Vetagro Sup, Université de Lyon, Lyon, France
  2. 2 Laboratoire de Biométrie et Biologie Evolutive UMR5558, CNRS, Université de Lyon, Université Lyon 1, Lyon, France
  3. 3 Clinique Vétérinaire des Drs Jacquet-Viallet, Angers, France
  1. Correspondence to Professor Lionel Zenner; lionel.zenner{at}


The present case report describes fatal strongyloidiasis in a three-month-old male dog born in France without any travel history. It presented unconscious and in hypothermia at the clinic, without any prodromal symptoms the hour before. The animal was hospitalised and treatments were initiated. Investigations revealed blood eosinophilia and first-stage larvae of Strongyloides stercoralis on stool smear. Following these results, treatment with fenbendazole was initiated. After a short-lived improvement of the puppy’s clinical condition, it rapidly deteriorated, leading to the death of the animal. The necropsy revealed congestion of the small intestine mucosa and the presence of different stages of S. stercoralis. This parasitic disease is poorly described in France and might be underdiagnosed. Our clinical case should serve as a reminder to veterinary clinicians of its occurrence in Europe and potential fatal evolution and to discuss the difficulties of its diagnosis and treatment.

  • dogs
  • parasitology
  • nematodes
  • gastrointestinal
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  • Contributors PJV: management and reporting. GB and LZ: parasitological analysis and case management.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement No additional data are available.

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