[Leptospira population ecology. II. An attempt to assess the number in the soil and the epizootic potential of infected spots].
Leptospires released with a carrier's urine were found to inhabit the upper layer of the soil 1 cm deep at a radius of 1-2 cm from the place of their penetration into the soil. A sharp drop in the number of leptospires in the "infected spot" was shown to occur; in 6-12 hours their concentration became no different from that in the intact soil. Most of such spots retained their infective capacity for 6 hours (up to 2 days), though the presence of leptospires at low concentration was registered for 10 days (the term of observation). The infective capacity was probably maintained by the regular addition of leptospires with carriers' urine.
D000818:Animals; D000835:Animals, Wild; D002353:Carrier State / Q000453:epidemiology / Q000382:microbiology; D004197:Disease Reservoirs; D004463:Ecology; D007919:Leptospira / Q000302:isolation & purification*; D007922:Leptospirosis / Q000453:epidemiology / Q000382:microbiology*; D012426:Russia; D012988:Soil Microbiology; D013997:Time Factors
K populiatsionnoĭ ékologii leptospir. Soobshchenie II. Opyt otsenki chislennosti v pochve i épizooticheskogo potentsiala zarazhennykh tochek.