English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Escherichia coli O157:H7 is responsible for many outbreaks worldwide. Until recently, no comparative study between environmental and clinical strains of E. coli O157:H7 has been reported in Bangladesh. In this present study, two environmental isolates (CD-11 and CD-17) of bovine origin and a reference clinical strain were investigated for the presence of virulence genes by PCR, VTEC-RPLA, Congo red binding, Sereny’s kerato-conjunctivitis, enterotoxic, cytotoxic, and mouse lethal activities. Both CD-11 and CD-17 showed the presence of eaeA and stx2 genes and were found to be non-invasive as has been revealed by the Congo red binding and Sereny’s kerato-conjunctivitis assays. The isolates also produced enterotoxin, cytotoxin and mouse lethality similar to that found with the reference clinical strain. All these results strongly suggest that the environmental bovine E. coli O157:H7 isolates have potentials to cause diseases similar to clinical E. coli O157:H7 strains, which might lead to any outbreak in Bangladesh.

Evaluation of Virulence Potentials of Local Bovine Escherichia coli O157:H7 Isolates for Causing Outbreaks in Bangladesh