Pasteurella multocida septicemia and subsequent Pasteurella dagmatis septicemia in a diabetic patient

Area of Science:

• Veterinary Medicine
• Human Infectious Diseases
• Microbiology

Background:

• Pasteurella species are known zoonotic pathogens, typically causing localized infections in humans.
• Serious systemic Pasteurella infections, such as bacteremia and septicemia, are uncommon, particularly in individuals without underlying health conditions.
• P. multocida bacteremia is infrequent, and P. dagmatis bacteremia is exceptionally rare.

Observation:

• A single diabetic patient experienced independent episodes of P. multocida and P. dagmatis septicemia.
• The patient had recent contact with two pet dogs, suggesting a potential source of infection.
• This case represents a rare instance of dual Pasteurella species septicemia in the same individual.

Findings:

• The case demonstrates the potential for Pasteurella species to cause severe systemic infections, even in the absence of typical predisposing factors beyond diabetes.
• The occurrence of two distinct Pasteurella species septicemia in one patient underscores the zoonotic risk associated with companion animals.
• Biochemical and clinical features of Pasteurella zoonosis are discussed in the context of this unusual presentation.

Implications:

• Clinicians should consider Pasteurella species in the differential diagnosis of severe infections, especially in diabetic or immunocompromised patients with animal exposure.
• This case highlights the importance of veterinary public health surveillance and awareness of zoonotic disease transmission.
• Further research into the pathogenesis and risk factors for severe Pasteurella infections is warranted.