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[COMPARISON OF DIAGNOSTIC EFFECTIVENESS OF METHODS OF DETECTION OF COXIELLA BURNETII IN BLOOD OF PATIENTS WITH Q FEVER BASED ON AMPLIFI- CATION OF 16S rRNA GENE FRAGMENTS (STANDARD PCR) AND groEL GENE (REAL- TIME PCR)].

AIM
Comparison of diagnostic capabilities of 2 variants of PCR for detection of Coxiella burneli persistence in dynamics of infectious process in patients with Q fever.


MATERIALS AND METHODS
110 samples of clinical material, obtained from patients with Q fever in an endemic region for this infection (Astrakhan region), were studied. The samples were studied in a standard PCR (marker - 16S rRNA gene fragment) and in real-time. PCR (RT-PCR) (marker - groEL gene fragment).


RESULTS
Both markers were established to be perspective for detection of C. burnetii DNA in clinical material, and RT-PCR detects positive result including late stages of the disease (illness day 21 - 31).


CONCLUSION
This study is the first Russian publication on comparison on different PCR variants for detection of C. burnetii in blood of Q fever patients in dynamics of the infectious process.