[Geographical variability of the causative agent of zoonotic cutaneous leishmaniasis].

A study of the phenetics of the zoonotic cutaneous leishmaniasis agent in Uzbekistan and subzone of southern and northern deserts has made it possible to separate a northern population (or a group of populations) of the agent. It differs from the southern population (or southern ones) in having smaller sizes of the amastigote stage, greater abundance of parasites in cutaneous affections of gerbils, milder progress of leishmaniasis in white mice and great gerbils. This population can be called priaral, i.e. belonging to the subzone of northern deserts of the Turan lowland.