Pasteurella

Characteristics/Epidemiology

Primarily colonise mammals and birds

Major human pathogen: Pasteurella multocida

Pathogenesis/Transmission

Virulence factors - capsule and endotoxin

Transmission - animal bite/cat scratch

Clinical significance

Should be suspected in case of acute painful cellulitis developed in 24 hours of animal bite or cat scratch or animal licking wound

Lesion begins to drain within 1-2 days

Other symptoms:

• Lymphangitis
• Lymphadenitis
• Fever
• Osteomyelitis
• Arthritis

Laboratory identification

Aerobes/facultative anaerobes

Bipolar staining

Cultured on blood agar

Nonhemolytic colonies

Treatment

Wound debridement

First line: Penicillin G, ampicillin, amoxicillin

Things to revise/add later:

Bibliography: