[Detection of Crimean-Congo hemorrhagic fever virus RNA in the hyalomma marginatum ticks taken from bitten people].

Among 1076 imagoes of the Hyalomma marginatum ticks taken from bitten people in the Astrakhan Region in 2006-2010, 10 (0.9%) ticks contained Crimean-Congo hemorrhagic fever (CCHF) virus RNA, as evidenced by RT-PCR. The diagnosis of CCHF was made on the basis of clinical data and the results of examination of sera in RT-PCR, ELISA-IgM, and ELISA-IgA in three of the 10 persons bitten by infected ticks. Two more patients were observed to have acute febrile diseases, but their sera were not examined in RT-PCR and ELISA, so their etiological association with CCHF virus RNA was not reliably established.