A 26-year-old man presents with cellulitis two days after he is bitten by his girlfriend's cat. What is the most likely dominant organism involved in the infection?

Question

Quizplus · Accepted Answer

Pasteurella multocida is a dominant organism in the cat's mouth. Choice A, Bartonella, is the causative agent of cat scratch fever and is less common in bites. Choice B, Calymmatobacterium, causes a sexually transmitted infection, and Toxoplasma (choice D) is associated with cats but transmitted by their feces, not bites. Choice E, tetanus, is not likely unless the man has not been vaccinated.

A 26-Year-Old Man Presents with Cellulitis Two Days After He