[Prevalence if giardiasis in Volgograd city population].

Analyzing many year's data on the prevalence of giardiasis among Volgograd dwellers indicated that the five-year infectivity index did not substantially change and it was 6.3 +/- 0.4%.

[Ecological ranging of the Volgograd territory on the basis of Staphylococcus aureus resident carrier state determination].

The evaluation of S. aureus resident carrier state on the nasal mucosa among school children showed that its intensity was determined by the ecological factors in the place of residence. Under favorable conditions of the central part of the city the level of S.

[The intestinal microenvironment in healthy persons under the technogenic action of an industrial city].

The intestinal microflora was studied in 806 healthy persons residing in three different environmental areas of the city of Volgograd. The study indicated that there were qualitative and quantitative differences in its composition, the heterogenicity of microbiocenosis being due to the degree of ambient air pollution. The changed found allowed four cenotypes (normal variants) of the microflora to be identified in urban residents.