Coxiella burnetii infection in a patient with tick bite
DOI:
https://doi.org/10.3855/jidc.16872Keywords:
Coxiella burnetii, Q fever, tick, polymerase chain reaction, immunofluorescence assayAbstract
Introduction: We report the case of a 60-year-old male who was hospitalized with fever, headache, fatigue, nausea, and myalgia for six days.
Methodology: Polymerase chain reactions (PCR) were performed on patient blood samples, and four ticks were collected from the area the patient mowed. Indirect immunofluorescence assays (IFAs) were performed on serum samples to detect specific antibodies.
Results: The collected ticks were identified as Haemaphysalis longicornis. Coxiella species-specific nested PCR (N-PCR) and sequencing confirmed the presence of Coxiella burnetii in the patient, and Coxiella-like bacteria were identified in three of the four ticks. IFA results showed ≥ 4-fold increases in both IgM and IgG antibody titers against Q fever.
Conclusions: Despite positive PCR results for Coxiella species in both the patient and the ticks, different bacterial species were isolated, suggesting that the patient was not infected with C. burnetii through tick bites. Further investigation is required to identify the carriers or transmitters of the infection.
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Copyright (c) 2023 Chang-Woo Kim, Choon-Mee Kim, Na-Ra Yun, Dong-Min Kim, Shilpa Chatterjee
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