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Volume 56, Issue 3

Shiga toxin-producing isolated from patients with diarrhoea in Bangladesh Free

Abstract

The prevalence of Shiga toxin-producing (STEC) and its characteristics were determined among hospitalized patients with diarrhoea and children with diarrhoea in an urban slum community of Dhaka city using sensitive culture and PCR methods. Stool samples were collected from 410 patients with diarrhoea enrolled in the 2 % surveillance system (every 50th patient attending the hospital with diarrhoeal disease is included) at the ICDDR,B hospital and from 160 children of 2–5 years of age with diarrhoea living in an urban slum in Dhaka, between September 2004 and April 2005. Shiga toxin genes () were detected by multiplex PCR in the enrichment broth of nine samples (2.2 %) from hospitalized patients and 11 samples (6.9 %) from the community patients. STEC was isolated from five stool samples with positive PCR results using a colony patch technique. All five isolates were positive in the Vero cell assay and PCR fragments of genes were confirmed by sequencing. Two isolates were positive for the attaching-and-effacing () gene and four were positive for the enterohaemolysin ( ) gene and enterohaemolysin production. The five isolates belonged to five different serotypes: O32 : H25, O2 : H45, O76 : H19, ONT : H25 and ONT : H19. It can be concluded that STEC is not a common pathogen in Bangladesh among hospitalized patients with diarrhoea nor among mild cases of diarrhoea in the community.

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Keyword(s): STEC, Shiga toxin-producing Escherichia coli
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2007-03-01
2024-04-20
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Shiga toxin-producing Escherichia coli isolated from patients with diarrhoea in Bangladesh
J. Med. Microbiol. 56, 380 (2007); https://doi.org/10.1099/jmm.0.46916-0
/content/journal/jmm/10.1099/jmm.0.46916-0
/content/journal/jmm/10.1099/jmm.0.46916-0
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