How does the transmission of Bartonella (B) henselae from cats to humans occur?

Updated: Feb 16, 2021
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: Michael Stuart Bronze, MD  more...
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The transmission of B henselae from cats to humans occurs via a scratch or bite when the bacterium is present on the cat’s claws or oral cavity. More than 90% of patients with CSD have a recent history of contact with a cat, usually a kitten, and about 75% of these patients give a history of cat scratch or bite. Dogs have been implicated in 5% of cases. [28, 29] Occasional cases of infection associated with monkey bites have also been reported.

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