Journal
PATHOLOGY
Volume 54, Issue 4, Pages 449-452Publisher
ELSEVIER
DOI: 10.1016/j.pathol.2021.10.014
Keywords
Bartonella; Bartonella henselae; cat scratch disease; real time PCR
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This study compared the performance of a real-time PCR assay targeting the ssrA gene to conventional PCR and sequencing methods for detecting and differentiating Bartonella species in human clinical samples. The real-time ssrA PCR performed better for non-Bartonella henselae species and improved the sensitivity of B. henselae detection.
The genus Bartonella includes species capable of causing disease in animals and humans. Due to its fastidious nature, direct detection of Bartonella causing human infection relies largely on molecular microbiological methods. Thus, it is imperative that diagnostic assays in use have the ability to detect a range of Bartonella species associated with human disease. In this study, we compared the performance of a real time polymerase chain reaction (PCR) assay targeting the ssrA gene to conventional rpoB-targeted PCR and sequencing for detection and differentiation of Bartonella species in human clinical samples. The real time ssrA PCR performed better for non-Bartonella henselae species, detecting B. clarridgeiae and B. quintana DNA in heart valve specimens that were not detected by rpoB PCR, and improved the sensitivity of B. henselae detection in blood specimens. Our findings suggest the real time ssrA PCR assay is suitable for detection and identification of Bartonella species in human clinical specimens.
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