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A new Shiga toxin 2 variant (Stx2f) from Escherichia coli isolated from pigeons.


ABSTRACT: We have isolated Shiga toxin (Stx)-producing Escherichia coli (STEC) strains from the feces of feral pigeons which contained a new Stx2 variant gene designated stx(2f). This gene is most similar to sltIIva of patient E. coli O128:B12 isolate H.I.8. Stx2f reacted only weakly with commercial immunoassays. The prevalence of STEC organisms carrying the stx(2f) gene in pigeon droppings was 12.5%. The occurrence of a new Stx2 variant in STEC from pigeons enlarges the pool of Stx2 variants and raises the question whether horizontal gene transfer to E. coli pathogenic to humans may occur.

SUBMITTER: Schmidt H 

PROVIDER: S-EPMC91964 | biostudies-literature | 2000 Mar

REPOSITORIES: biostudies-literature

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A new Shiga toxin 2 variant (Stx2f) from Escherichia coli isolated from pigeons.

Schmidt H H   Scheef J J   Morabito S S   Caprioli A A   Wieler L H LH   Karch H H  

Applied and environmental microbiology 20000301 3


We have isolated Shiga toxin (Stx)-producing Escherichia coli (STEC) strains from the feces of feral pigeons which contained a new Stx2 variant gene designated stx(2f). This gene is most similar to sltIIva of patient E. coli O128:B12 isolate H.I.8. Stx2f reacted only weakly with commercial immunoassays. The prevalence of STEC organisms carrying the stx(2f) gene in pigeon droppings was 12.5%. The occurrence of a new Stx2 variant in STEC from pigeons enlarges the pool of Stx2 variants and raises t  ...[more]

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