PubMed Health⌕ Search

Biomedical subjects

T V Beĭ

Publications and source records attributed to T V Beĭ.

13 recordsLinked to original sources
PubMed1989

[Occurrence in the environment and among the population of antibiotic-resistant strains of pathogenic Escherichia].

When studying antibioticograms of 1303 strains of pathogenic Escherichia, the correlation of their resistance with the character and source of emanation, exciters' serogroups and antibiotics has been established. The strains isolated from the environment, primarily from food-staffs, wash-out, and wastewater have higher antibiotic resistance. No significant differences are noted in the number of resistance markers as to the source of pathogenic Escherichia. The following antibiotic range is established: streptomycin-chloramphenicol (chloromycetin)--neomycin sulfate-tetracyline-kanamycin-polymyxin-gentamycin, thus the least number of strains in characterized by gentamycin resistance.

Adult↗
PubMed1989

[Colicin genotype characteristics of pathogenic Escherichia circulating in the environment].

Colicin identification of pathogenic Escherichia, isolated from the environmental objects, showed that determination of colicinogenicity signs and sensitivity to standard colicins in pathogenic E. to a more considerable degree depended on strain sulfur-group membership than on the amanating objects. The analysis of colicin genotype characteristics of pathogenic E., circulating in environment, provided much information and could be used in identifying a source of infection and ways of escherichiosis pathogen transmission.

Bacteriocin Plasmids↗
PubMedDate not supplied

[The virulence and colicinogenicity of pathogenic Escherichia isolated from water and human beings].

An analysis of virulence and colicinogenicity of 180 cultures of pathogenic Escherichia of different origin has shown that the expressed characters occurred in 40 +/- 49% of strains isolated from people and 28.7 +/- 5.1% of strains isolated from water. The dependence of the studied properties on serogroups of the agents is established. These characters are more often inherent in representatives of the dominating serogroups, which may be a reason of their selective advantage in circulation among people and in water.

Carrier State↗