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Origin and characteristics of enteroinvasive strains of Escherichia coli (EIEC) isolated in Germany

Published online by Cambridge University Press:  01 June 1997

L. BEUTIN ,
K. GLEIER ,
I. KONTNY ,
P. ECHEVERRIA  and
F. SCHEUTZ
L. BEUTIN
Affiliation:
Division of Pathogenic Escherichia coli, Department of Microbiology, Robert Koch-Institut, Nordufer 20, D-13353 Berlin, Germany
K. GLEIER
Affiliation:
Division of Pathogenic Escherichia coli, Department of Microbiology, Robert Koch-Institut, Nordufer 20, D-13353 Berlin, Germany
I. KONTNY
Affiliation:
Landeshygieneinstitut Mecklenburg–Vorpommern, D-18002 Rostock, Germany
P. ECHEVERRIA
Affiliation:
AFRIMS, 315/6 Rajvithi Road, Bangkok 10400, Thailand
F. SCHEUTZ
Affiliation:
The International Escherichia and Klebsiella Centre (WHO), Department of Gastrointestinal Infections, Statens Serum Institut, DK-2300 Copenhagen S, Denmark
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Abstract

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Thirty-five E. coli strains belonging to O-serogroups associated with enteroinvasive types of Escherichia coli (EIEC) isolated in Germany between 1989 and 1995 were investigated for invasivity-associated DNA sequences. Only 11 strains were positive for ipaH and thus confirmed as EIEC. All 11 EIEC isolates originated from human infections which were imported to Germany from Eastern Europe. EIEC O124 were most frequent and originated from asymptomatic Romanians arriving at Rostock, Germany in 1992 and 1993. In January 1993, EIEC O124 were isolated from faeces of a laboratory technician with diarrhoea working at the enteric pathogen department of the Institute of Hygiene in Rostock. By comparing her E. coli O124 isolate with recently imported O124 strains for Xba I restriction fragment length polymorphisms (RFLP) the probable source of infection could be determined. Four major RFLP patterns were found in the group of O124 strains. O124 strains with identical RFLP patterns were found in the group of O124 strains. O124 strains with identical RFLP patterns were isolated from people who were in close contact to each other.

Type
Research Article
Information
Epidemiology & Infection , Volume 118 , Issue 3 , June 1997 , pp. 199 - 205
Copyright
© 1997 Cambridge University Press