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Volume 18, Number 3—March 2012


Pathogenic Potential to Humans of Bovine Escherichia coli O26, Scotland

Margo E. Chase-ToppingComments to Author , Tracy Rosser, Lesley J. Allison, Emily Courcier, Judith Evans, Iain J. McKendrick, Michael C. Pearce, Ian Handel, Alfredo Caprioli, Helge Karch, Mary F. Hanson, Kevin G.J. Pollock, Mary E. Locking, Mark E.J. Woolhouse, Louise Matthews, J. Chris Low, and David L. Gally
Author affiliations: University of Edinburgh, Edinburgh, UK (M.E. Chase-Topping, E. Courcier, M.C. Pearce, M.E.J. Woolhouse); The Roslin Institute and Royal (Dick) School of Veterinary Studies, Edinburgh (T. Rosser, I. Handel, D.L. Gally); Scottish E. coli O157/VTEC Reference Laboratory, Edinburgh (L.J. Allison, M.F. Hanson); Scottish Agricultural College, Edinburgh (J. Evans, M.C. Pearce, J.C. Low); Biomathematics and Statistics Scotland, Edinburgh (I.J. McKendrick); Istituto Superiore di Sanità, Rome, Italy (A. Caprioli); University of Münster, Münster, Germany (H. Karch); Health Protection Scotland, Glasgow, UK (K.G.J. Pollock, M.E. Locking); University of Glasgow Veterinary School, Glasgow (L. Matthews)

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Table 1

Source of Escherichia coli O26 isolates and sample sizes for the various statistical analyses, Scotland*

Source Country of origin Analyses No. isolates Clinical information
Bovine† Scotland Prevalence 249 NR
Bovine† Scotland PFGE 154 NR
Bovine† Scotland MLST 33 NR
Human‡ Scotland PFGE 12 NK
Human‡ Scotland MLST 11 D (n = 8); BD (n = 2); NK (n = 1)
Human§ England PFGE 4 NK
Human§ Ireland PFGE 11 NK
Human§ Belgium PFGE 2 NK
Human§ Sweden PFGE 3 NK
Human§ Italy PFGE 1 NK
Human¶ Italy MLST 5 HC (n = 1); HUS (n = 4)
Human# Germany MLST 14 D (n = 6); HUS (n = 8)

*NR, not relevant; PFGE, pulsed-field gel electrophoresis; MLST, multilocus sequence typing; NK, not known; D, diarrhea; BD, bloody diarrhea, HC, hemorragic colitis; HUS, hemolytic uremic syndrome. Where appropriate, the number of isolates from each clinical designation is provided.
†Isolated 2002–2004 (21).
‡L.J. Allison, Scottish E. coli O157/VTEC Reference Laboratory, Edinburgh, UK; isolated 2002–2003.
§H. Smith, Laboratory of Gastrointestinal Pathogens, Colindale, UK. The years isolated are unknown.
¶A. Caprioli, Instituto Superiore di Sanità, Rome, Italy. The years isolated are unknown.
#H. Karch, University of Műnster, Műnster, Germany; isolated 1994–2000.

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