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Related Experiment Videos

Pasteurella multocida in raptors: prevalence and characterization

T Y Morishita1, L J Lowenstine, D C Hirsh

  • 1Department of Veterinary Preventive Medicine, College of Veterinary Medicine, Ohio State University, Columbus 43210-1092, USA.

Avian Diseases
|October 1, 1996
PubMed
Summary
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Pasteurella multocida is not a common carrier in raptors but can cause avian cholera. Isolates, primarily somatic serotype 1, were susceptible to common antibiotics and showed genetic relatedness.

Area of Science:

  • Veterinary Microbiology
  • Wildlife Disease Ecology

Background:

  • Pasteurella multocida infections in raptors are documented but lack detailed characterization and prevalence data.
  • Understanding P. multocida carriage and characteristics in raptors is crucial for avian health management.

Purpose of the Study:

  • To determine the prevalence of P. multocida in raptors.
  • To characterize P. multocida isolates from infected raptors, including biotype, serotype, and antibiotic susceptibility.
  • To assess the genetic relatedness of P. multocida isolates from raptors.

Main Methods:

  • Culturing of P. multocida from pharyngeal, choanal, and cloacal regions of 398 raptors.
  • Characterization of eight P. multocida isolates by biotyping, somatic serotyping, and antibiogram analysis.

Related Experiment Videos

  • Analysis of Pasteurella multocida chromosomal DNA using restriction site heterogeneity.

    • Main Results:

    • P. multocida was not a normal pharyngeal, choanal, or cloacal inhabitant in raptors.
    • P. multocida was isolated from raptors diagnosed with avian cholera.
    • Six of eight isolates were somatic serotype 1, with others being serotypes 3 and 3,4. Most isolates were subspecies multocida.
    • All isolates were susceptible to penicillin G, sulfisoxazole, tetracycline, and trimethoprim-sulfamethoxazole.
    • Restriction site heterogeneity analysis revealed genetic relatedness among P. multocida somatic serotype 1 isolates from diurnal raptors.

    Conclusions:

    • Pasteurella multocida is an opportunistic pathogen in raptors, causing avian cholera rather than being a commensal.
    • Somatic serotype 1 is prevalent in P. multocida infections among raptors.
    • Raptor-derived P. multocida isolates, particularly serotype 1, exhibit genetic similarities, suggesting potential common sources or transmission pathways.