• Jpn. J. Infect. Dis. · Jan 2014

    Seroprevalence of Crimean-Congo hemorrhagic fever in southeastern Bulgaria.

    • Ivanka Gergova and Bozhin Kamarinchev.
    • Department of Military Epidemiology and Hygiene, Military Medical Academy.
    • Jpn. J. Infect. Dis. 2014 Jan 1; 67 (5): 397-8.

    AbstractCrimean-Congo hemorrhagic fever (CCHF), which is endemic in Bulgaria, is caused by the Crimean-Congo hemorrhagic fever virus (CCHFV). The seroprevalence of CCHFV in southeastern Bulgaria was examined in this study. For this purpose, a total of 751 human blood samples were collected and examined by indirect immunofluorescence assay. In addition, a questionnaire was completed for every participant. Anti-CCHFV antibodies were detected in 3.20% (24/751) of the tested sera. None of the seropositive individuals had a history of CCHF. The results indicate that the proportion of positive findings increase with age. The significant risk factors for CCHFV infection are tick bites (18.85%, 23/122), livestock breeding (6.15%, 16/260), and residing in rural areas (6.20%, 21/339).

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