title: [Survival rate of Leptospira pomona in the soil at a natural leptospirosis focus].
abstract: At the area of a natural focus of leptospirosis (caused by L. pomona) in the Mozdok region of the North Occetic ASSR leptospires were detected by the method of dark field microscopy in 22% of intact soil samples. The presence of pathogenic leptospires in this soil was not confirmed by the method of the biological assay on Syrian golden hamsters. In controlled tests lasting 1-277 days, in 30.4% of cases L. pomona retained their viability, pathogenic and antigenic properties for as long as 74 days, while staying in the soil at the focus of infection with humidity being 15.2-31.4% and pH = 6.7-7.2. 11 Leptospira cultures isolated after staying in the soil retained their pathogenic properties and the death of the animals used in the bioassay from the acute form of leptospiral infection.
authors.forename: S V
authors.initials: SV
authors.lastname: Zaĭtsev
authors.forename: Iu G
authors.initials: IuG
authors.lastname: Chernukha
authors.forename: O A
authors.initials: OA
authors.lastname: Evdokimova
authors.forename: A S
authors.initials: AS
authors.lastname: Belov
mesh_terms: D000818:Animals; D006224:Cricetinae; D007919:Leptospira; D012988:Soil Microbiology
vernacular_title: Vyzhivaemost' leptospir serogruppy pomona v pochve prirodnogo ochaga leptospirosa.