[Cases of Crimean-Congo hemorrhagic fever in Astrakhan Province]. / O sluchaiakh Krymskoi--Kongo gemoragicheskoi likhoradki v Astrakhanskoi oblasti.

The paper briefly presents clinical, epidemiological, virological and serological data on cases of Crimean-Congo hemorrhagic fever (CCHF) in Astrakhan Province. The results indicate annual infection of the regions population with CCHF virus, the main mode of transmission being vector-borne. The advantages of the fluorescence antibody technique and enzyme immunoassay-for diagnosis of the disease were demonstrated.

[Indication of the antigen to Crimean-Congo hemorrhagic fever in vector ticks using a solid-phase immunoenzyme technic]. / Indikatsiia antigena virusa krymskoi-kongo gemorragicheskoi likhoradki v kleshchakh-perenoschikakh tverdofaznym immunofermentnym metodom.

Paper presents the results of a successful use of a solid-phase immunoassay for indication of the antigen of hemorrhagic fever-Crimean--Congo virus in lays and half-fed female-ticks Hyalomma marginatum marginatum Koch (1795) collected in endemic area, which adds to our knowledge of this disease focus activity.

[The virus carriage of ticks, vectors of the causative agent of Crimean hemorrhagic fever]. / Izuchenie virusofornosti kleshchei--perenoshchikov vozbuditelia krymskoi gemorragicheskoi likhoradki.

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.