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  • Title: Evaluation of a serological test for the diagnosis of Borrelia miyamotoi disease in Europe.
    Author: Jahfari S, Sarksyan DS, Kolyasnikova NM, Hovius JW, Sprong H, Platonov AE.
    Journal: J Microbiol Methods; 2017 May; 136():11-16. PubMed ID: 28259789.
    Abstract:
    BACKGROUND: Borrelia miyamotoi causes systemic febrile illness and is transmitted by the same tick species that transmits Borrelia burgdorferi sensu lato and tick-borne encephalitis virus. We describe a serological test using a fragment of glycerophosphodiester phosphodiesterase (GlpQ) as an antigen, and determined its performance in well-defined patient categories. METHODS: Serum of patients with PCR-confirmed Borrelia miyamotoi disease (BMD), Lyme borreliosis (LB), tick-borne encephalitis (TBE), and healthy blood donors (HBD) were collected in Udmurt Republic, Russia. Sera of BMD and LB patients were collected at hospital admission, one week, one month and one year after admission. RESULTS: The levels of IgM and IgG anti-GlpQ antibodies, determined as optical density values in Luminex bead-based assays, were significantly higher in the BMD patient group than in LB patients, TBE patients or HBD group (all p<0.05). CONCLUSIONS: By using a strict cut-off value, it was possible to exclude B. miyamotoi infection in LB and TBE patients and to serologically confirm B. miyamotoi infection in 44% to 94% of the PCR-positive BMD patients (95% confidence interval). Thus, sensitive serological assays should not solely rely on rGlpQ, to support the diagnosis of acute BMD.
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