At the present stage of the studies only Ixodidae ticks can be classed by the types of foci, being the main blood-sucking vectors of the tularemia agent. Other blood-sucking arthropods, considering the species abundance and wide-spread occurrence and certain habitat versatility, can be tularemia vectors in several or even in all types of foci. These are the following: primarily, gamaside and argasid ticks, as well as bloodsucking insects.
