[Importance of ixodid ticks in the transmission and preservation of the causative agent of Crimean hemorrhagic fever in foci of the infection].

Experimental infection of Hyalomma plumbeum Panz., Rhipicephalus rossicus Jak. et K. Jak. and Dermacentor marginatus Sulz. with the virus of the Crimean hemorrhagic fever has shown that preimaginal phases of the above ticks easily receive an infection agent from the infected donor, preserve it for a long time, transmit it through a bite during feeding to susceptible animals; during metamorphosis they transmit this agent to the subsequent developmental phases as well as to the progeny of the infected individuals from one generation to another.