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A unique outbreak of Pasteurella multocida in a chronic disease hospital
Abstract:
An outbreak of Pasteurella multocida infection, involving seven patients on two adjacent wards, has been observed. All seven patients were debilitated and had underlying chronic neuromuscular and/or pulmonary disease and had a tracheostomy tube in situ. The isolates of P. multocida were of the same biotype and serotype, and had an identical antibiogram. Epidemiological studies failed to determine the source of these infections.
Insights
A Pasteurella multocida outbreak occurred in debilitated patients with tracheostomies. Despite identical bacterial strains, the infection source remains undetermined, highlighting challenges in hospital-acquired infection control.
Area of Science:
- Infectious Diseases
- Hospital Epidemiology
- Microbiology
Background:
- Pasteurella multocida is an opportunistic pathogen.
- Hospital-acquired infections pose significant risks to vulnerable patients.
- Tracheostomy use is associated with increased risk of respiratory infections.
Purpose of the Study:
- To investigate an outbreak of Pasteurella multocida infections.
- To characterize the causative agent and identify potential sources.
- To inform infection control strategies.
Main Methods:
- Case identification and clinical data review.
- Bacterial isolate characterization (biotyping, serotyping, antibiogram).
- Epidemiological investigation of patient and environmental factors.
Main Results:
- Seven patients on adjacent wards developed P. multocida infections.
- All affected patients were debilitated with chronic neuromuscular/pulmonary disease and tracheostomies.
- Isolates were identical in biotype, serotype, and antibiogram.
- The source of the outbreak could not be identified.
Conclusions:
- P. multocida outbreaks can occur in high-risk patient populations.
- Identical isolates suggest a common source or transmission event.
- Further investigation is needed to elucidate transmission routes for P. multocida in healthcare settings.