Within the genus Bartonella are 45 species, of which more than 10 can infect cats and dogs. Companion animals serve as reservoirs for several zoonotic species of Bartonella. Researchers evaluated the frequency of the occurrence of Bartonella spp. DNA in dogs from households where cats with clinical bartonellosis were kept. The presence of Bartonella DNA isolated from cats was also found in the body of 10% of tested dogs. The study suggests that cats serve as a Bartonella reservoir for dogs, and the dogs can play the same role with regard to humans.

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Cats as a reservoir of Bartonella henselae for dogs.