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Human enteric infection with canine hookworms

J Croese1, A Loukas, J Opdebeeck

  • 1University of Queensland, Australia.

Annals of Internal Medicine
|March 1, 1994
PubMed
Summary
This summary is machine-generated.

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Canine hookworm infections in humans are increasingly diagnosed in urban Australia. Abdominal pain is a key symptom, often linked to eosinophilic inflammation, with serology aiding diagnosis.

Area of Science:

  • Zoonotic diseases
  • Parasitology
  • Gastroenterology

Background:

  • Zoonotic ancylostomiasis, specifically canine hookworm (Ancylostoma caninum), is an emerging concern in developed urban settings.
  • Understanding its transmission and clinical presentation is crucial for public health.

Observation:

  • A retrospective case study identified nine patients with enteric hookworm infection acquired from domestic dogs.
  • Clinical presentations included abdominal pain (acute and severe), eosinophilia, elevated immunoglobulin E, and eosinophilic gut inflammation.
  • Infections were diagnosed via endoscopy and biopsy, with serologic testing confirming exposure to A. caninum.

Findings:

  • Ancylostoma caninum was identified in six patients, with others showing non-specific hookworm damage.

Related Experiment Videos

  • Parasites were sexually immature, indicating poor adaptation to the human host and non-patent infections.
  • Increased diagnoses in recent years suggest a growing prevalence in northeastern Australia.

    • Implications:

    • Human enteric infections with A. caninum are a growing zoonotic threat in urban areas with high pet ownership.
    • Early diagnosis through clinical suspicion and serologic testing is vital.
    • Standard hygiene measures offer limited protection, highlighting the need for public awareness regarding pet-acquired infections.