Bartonellosis - Bartonella henselae

Bartonella are bacteria that live inside cells; they can infect humans and other mammals. It is mainly carried by cats and causes cat-scratch disease, endocarditis, and several other serious diseases in humans. Bartonella bacteria are known to be carried by fleas, body lice and ticks. Scientists suspect that ticks are a source of infection in some human cases of bartonellosis. People with tick bites and no known exposure to cats have acquired the disease. 

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For further information we refer you to:

Bartonella web pages at

Columbia University's Lyme and Tick-Borne Diseases Research Center

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