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Community-acquired pneumonia due to Pasteurella multocida

Mark A Marinella1

  • 1Department of Internal Medicine, Wright State University School of Medicine, 33 West Rahn Road, #101, Dayton OH 45429, USA. mmarinella@pol.net

Respiratory Care
|December 2, 2004
PubMed

Insights

Community-acquired pneumonia typically stems from common germs. This case highlights Pasteurella multocida, a bacteria found in cats, causing severe pneumonia in an elderly man with multiple feline companions.

Area of Science:

  • Veterinary medicine
  • Infectious diseases
  • Human medicine

Background:

  • Community-acquired pneumonia (CAP) usually arises from common pathogens.
  • Unusual bacterial species can cause CAP, though rarely.
  • Pasteurella multocida is a Gram-negative bacterium commonly found in the mouths of domestic animals like cats and dogs.

Observation:

  • The case involves an elderly male patient with a history of owning 16 cats.
  • The patient presented with symptoms indicative of pneumonia.
  • The pneumonia was confirmed to be bacteremic, with bacteria present in the bloodstream.

Findings:

  • The causative agent identified was Pasteurella multocida.
  • This represents a rare instance of P. multocida causing pneumonia.
  • The infection occurred in a patient with close contact with multiple cats, suggesting zoonotic transmission.

Implications:

  • Highlights the potential for zoonotic transmission of Pasteurella multocida from pets to humans.
  • Underscores the importance of considering unusual pathogens in diagnosing pneumonia, especially in individuals with significant animal contact.
  • Suggests that Pasteurella multocida pneumonia can occur without a history of animal bites or scratches.

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