Pasteurella

__NOTOC__ Pasteurella is a genus of Gram-negative, facultatively anaerobic bacteria. Pasteurella species are nonmotile and pleomorphic, and often exhibit bipolar staining ("safety pin" appearance). Most species are catalase- and oxidase-positive. The genus is named after the French chemist and microbiologist, Louis Pasteur, who first identified the bacterium now known as Pasteurella multocida as the agent of chicken cholera.

__NOTOC__ Pasteurella is a genus of Gram-negative, facultatively anaerobic bacteria. Pasteurella species are nonmotile and pleomorphic, and often exhibit bipolar staining ("safety pin" appearance). Most species are catalase- and oxidase-positive. The genus is named after the French chemist and microbiologist, Louis Pasteur, who first identified the bacterium now known as Pasteurella multocida as the agent of chicken cholera. ==Pathogenesis== Many Pasteurella species are zoonotic pathogens, and humans can acquire an infection from domestic animal bites. P. multocida is the most frequent causative agent in human Pasteurella infection. Common symptoms of pasteurellosis in humans include swelling, cellulitis, and bloody drainage at the site of the wound. Infection may progress to nearby joints, where it can cause further swelling, arthritis, and abscesses. Pasturella spp. can be transmitted through the bite of a dog. The common occurrence of the bacteria is a reason to be medically proactive and defensive (antibacterial treatments are often necessary) if a bite occurs. No human vaccines have been approved for any pathogen of this genus. ===Antibiotic sensitivity=== Pasteurella spp. are generally susceptible to chloramphenicol, the penicillins, tetracycline, and the macrolides. P. multocida is highly sensitive to enrofloxacin, oxytetracycline, chloramphenicol, and ampicillin. ==References== ==External links== Man 'first rabbit flu victim' - BBC News

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