MOLECULAR-BIOLOGICAL CHARACTERISTICOF YERSINIA ENTEROCOLITICA CIRCULATINGIN VARIOUS REGIONS OF RUSSIANFEDERATION


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Abstract

Aim. Complex characteristic by phenotype
signs and main virulence genes of Yersinia enterocolitica
strains circulating in various regions
of Russian Federation. Materials and methods.
46 strains of Y. enterocolitica of 2 - 4 biotypes
and 401 strains of Y. enterocolitica 1A biotype
isolated in 15 administrative territories of
Russian Federation (Siberian, Far Eastern,
Northwestern, Urals Federal Districts) from
infected people, rodents, agricultural animals,
birds, the environment were studied. Phagotyping
was performed in the reference laboratory
of the Pasteur Institute (Paris). All the Y.
enterocolitica cultures were studied for the presence
of ail, ystB and ystA genes by PCR
method. Presence of virulence plasmid pYV was
determined by gel electrophoresis by T. Kieser
method. Results. 447 strains of Y. enterocolitica
biotype 1A and 2 - 4 were studied. Most of the
strains belonged to serotypes О:3; О:9; О: 5; О:
6,30; О:6,31; О:7,8. Phagotyping was performed
for part of the strains. Phagotypes Xz and Xo
were determined in biotype 1A strains. 2 - 4
biotype strains circulating in Siberia and the Far
East were characterized by phagotype VIII, X3
that are present in other countries, and phagotype
Xz that is spread only in Russia. Phagotypes
IXa, IXb, II that are characteristic for strains
from Canada, South Africa, Japan were not
detected in Russian Federation. All the strains
of 2 - 4 biotypes had ail and ystA genes. Most
of the recently isolated strains had pYV. The
only pathogenicity factor detected in 81.3% of
biotype 1A strains including 14 strains from
patients was ystB gene. These infections were
accompanied by an expressed clinical symptomatology
of enteritis and enterocolitis.
Conclusion. Isolation of 1A biotype strains from
patients necessitates execution of diagnostic
studies of intestinal yersiniosis in patients with
diagnosis «acute intestinal infection of undetermined
etiology».

About the authors

T V Karimova

E A Bogumil'chik

E A Voskresenskaya

V T Klimov

G Ya Tseneva

M V Chesnokova

L I Ivanov

T B Poutonen

A V Vasil'eva

T V Gromova

T V Karimova

Center of Hygiene and Epidemiology of Novo -sibirsk Region, Novosibirsk

Center of Hygiene and Epidemiology of Novo -sibirsk Region, Novosibirsk

E A Bogumilchik

Pasteur St. PetersburgResearch Institute of Epidemiology andMicrobiology

Pasteur St. PetersburgResearch Institute of Epidemiology andMicrobiology

E A Voskresenskaya

Pasteur St. PetersburgResearch Institute of Epidemiology andMicrobiology

Pasteur St. PetersburgResearch Institute of Epidemiology andMicrobiology

V T Klimov

Irkutsk Research Plague ControlInstitute of Siberia and the Far East

Irkutsk Research Plague ControlInstitute of Siberia and the Far East

G Ya Tseneva

Pasteur St. PetersburgResearch Institute of Epidemiology andMicrobiology

Pasteur St. PetersburgResearch Institute of Epidemiology andMicrobiology

M V Chesnokova

Irkutsk Research Plague ControlInstitute of Siberia and the Far East

Irkutsk Research Plague ControlInstitute of Siberia and the Far East

L I Ivanov

KhabarovskStation for Plague Control

KhabarovskStation for Plague Control

T B Poutonen

Center of Hygieneand Epidemiology in the Republic of Karelia,Petrozavodsk, Russia

Center of Hygieneand Epidemiology in the Republic of Karelia,Petrozavodsk, Russia

A V Vasilyeva

KhabarovskStation for Plague Control

KhabarovskStation for Plague Control

T V Gromova

KhabarovskStation for Plague Control

KhabarovskStation for Plague Control

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Copyright (c) 2012 Karimova T.V., Bogumil'chik E.A., Voskresenskaya E.A., Klimov V.T., Tseneva G.Y., Chesnokova M.V., Ivanov L.I., Poutonen T.B., Vasil'eva A.V., Gromova T.V., Karimova T.V., Bogumilchik E.A., Voskresenskaya E.A., Klimov V.T., Tseneva G.Y., Chesnokova M.V., Ivanov L.I., Poutonen T.B., Vasilyeva A.V., Gromova T.V.

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