What is the prevalence of Bartonella (B) henselae among family members of patients with 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

Zangwill et al [24] found an 18% prevalence rate of seropositivity to B henselae among family members of patients with CSD. Upon further questioning, 43% of these individuals reported symptoms consistent with CSD during the previous 2 months. In the same study, matched control subjects not exposed to cats exhibited a 3.6% seropositivity rate. Carithers found similar results in a series of 1200 patients; 18.5% of asymptomatic family members had positive CSD antigen skin test results. [3]


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