Проблемы особо опасных инфекций (Apr 2021)

Features of the Biological Properties of <em>Vibrio cholerae</em> Isolated during the Monitoring of Water Bodies in Rostov-on-Don from 1989 to 2018

  • M. I. Ezhova,
  • D. А. Levchenkо,
  • I. V. Arkhangelskaya,
  • V. D. Kruglikov,
  • N. B. Nepomnyashchaya

DOI
https://doi.org/10.21055/0370-1069-2021-1-148-151
Journal volume & issue
Vol. 0, no. 1
pp. 148 – 151

Abstract

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The goal is to study the features of the biological properties of Vibrio cholerae strains found in environmental objects (EO) on the territory of Rostov-on-Don from 1989 to 2018.Materials and methods. Bacteriological, molecular biological and statistical methods were used to study 73 strains of cholera vibrios O1, O139 and 1702 strains of nonO1/nonO139 serogroups isolated over a 30-year period.Results and discussion. It was found that in Rostovon-Don, 78.0 % of toxigenic strains were isolated from all isolated from environmental protection in Russia, among which 2 were genetically unchanged. The V. cholerae O1 classical strain and 72 V. cholerae El Tor strains were found, of which 70 % belonged to the Ogawa serovar, and 3 % of the nontoxigenic strains were susceptible to the classical phage. A “very weak direct relationship” was statistically revealed between the isolation of V. cholerae O1, O139 and V. cholerae nonO1/nonO139 strains, in which the dominant serogroups (O67, O76, O75, O53, O16) were identified, and 18 % of the strains showed atypical agglutinability. Revealing the biological characteristics of V. cholerae strains contributes to the optimization of monitoring studies.

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