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Strangles (S. equi equi)
Infectious DiseaseRespiratoryBacteriaEquineNew
Key Points
  • Strangles is a highly contagious respiratory disease caused by Streptococcus equi subsp. equi
  • It is host-adapted to equids
  • The most common early signs are pyrexia, mucopurulent nasal discharge and lymph node enlargement
  • PCR on abscess aspirates, nasopharyngeal washes or guttural pouch washes is the most reliable diagnostic test
  • Treatment primarily focuses on supportive care with antibiotics reserved for specific cases
  • Isolation, biosecurity and surveillance are essential for controlling outbreaks
  • Asymptomatic carrier horses are the main source of infection for new outbreaks
Differential Diagnoses
  1. Equine influenza
  2. Equine herpesvirus
  3. Glanders
  4. Lymphoma
Overview
Aetiology
Clinical Signs
Diagnosis
Treatment
Prevention
Resources
Overview

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Aetiology

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Clinical Signs

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Diagnosis

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Treatment

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Prevention

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Resources

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Educational content only. This factsheet is for general veterinary education and is not a substitute for professional veterinary advice, diagnosis, or treatment. Not for use in an emergency — contact a veterinarian or emergency service. Full disclaimer →