title: [Intensity of parasitic contacts in the colonies of large gerbils under conditions of different population density of the animals and their fleas].
abstract: In the period from April to May and September to October of 1967--1973 in the Mujun-Kum a radioactive tracing of great gerbils was carried out. In all 225 tests were conducted. The greatest intensity of parasitic contacts between the animals was noted at their average quantity. Its further rise does not result in the increase of the parasitic relations. If the number of fleas is high the parasitic contacts level even at the relatively low number of great gerbils is usually high enough for a further passing of the plague microbe. If the number of both fleas and great gerbils is low the parasitic relations provide but not always an agent transmission.
mesh_terms: D000818:Animals; D001345:Autoradiography; D004812:Epidemiologic Methods; D005849:Gerbillinae / Q000469:parasitology*; D007303:Insect Vectors; D007553:Isotope Labeling; D007707:Kyrgyzstan; D010930:Plague / Q000382:microbiology / Q000635:transmission; D011156:Population Density; D005423:Siphonaptera; D015010:Yersinia pestis / Q000472:pathogenicity
vernacular_title: Ob intensivnosti parazitarnykh kontaktov v poseleniiakh bol'shikh peschanok v usloviiakh raznoĭ chislennosti zver'kov i ikh blokh