title: [Analysis of the forrmation and dynamics of the "outside the body" portion of a population of the causative agent in a natural focus of leptospirosis].
abstract: Field experiments with the use of radioisotope models have shown that urine containing leptospirae is regularly excreted in the same "infected spots" of the territory under study. For this reason, it is an increase in the frequency of Leptospira excretion in each "infected spot", rather than an increase in the number of such spots, which occurs in the course of the epizootic. To detect the "infected spots" on the experimental ground with the use of radioisotope models, the registration of such spots for 5-7 days is sufficient. The excretion of urine by animals in the "infected spots" has been shown to decrease the acidity of the soil, thus creating conditions favorable for the survival of leptospirae in the soil.
mesh_terms: D000818:Animals; D003411:Arvicolinae / Q000382:microbiology; D001437:Bacteriuria / Q000382:microbiology; D004197:Disease Reservoirs; D007919:Leptospira / Q000302:isolation & purification*; D007922:Leptospirosis / Q000382:microbiology*; D012988:Soil Microbiology; D013997:Time Factors; D014586:USSR
vernacular_title: K analizu formirovaniia i dinamiki "vneorganizmennoĭ" chasti populiatsii vozbuditelia v prirodnom ochage leptospiroza.