What is the most common cause of cat scratch disease (CSD)?

Updated: Feb 16, 2021
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Most cases of CSD are caused by Bartonella henselae.Bartonella species are small pleomorphic, fastidious, facultative, gram-negative, and intracellular bacilli. Infection appears to confer lifelong immunity, as reports of recurrences of clinical catscratch disease are rare. [23]


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