[The virus carriage of ticks, vectors of the causative agent of Crimean hemorrhagic fever].

The study of ixodes ticks collected in Astrakhan Province in 1982-1987 has revealed spontaneous infection with Crimean hemorrhagic fever virus in 4 species. It has been established that a proportion of the infected ck suspensions from the imago Hyalomma marginatum marginatum (a back-ground species for the given region) was 3.6% as measured by the method of mouse infection and 8.9% as measured by the enzyme immunoassay. The advantages of the enzyme immunoassay as a method for Crimean hemorrhagic fever virus identification in ticks have been demonstrated.