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Volume 6, Number 5—October 2000

Dispatch

Prevalence of Non-O157:H7 Shiga Toxin-Producing Escherichia coli in Diarrheal Stool Samples from Nebraska

Paul D. Fey*Comments to Author , R.S. Wickert*, M.E. Rupp, T.J. Safranek†, and S.H. Hinrichs*
Author affiliations: *University of Nebraska Medical Center, Omaha, Nebraska, USA; †Department of Health and Human Services, Lincoln, Nebraska, USA

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Table 1

Results of CT-SMAC culture,* enzyme immunoassay, and stx polymerase chain reaction

Laboratory Isolate Serotype CT-SMACa EIA PCR
A A1 O157:H7 + + +
A2 O157:H7 + + +
A3 O26:H11 - + +
A4 O157:NM + + +
B B1 O145:NM - + +
B2 O103:H2 - + +
B3 O157:NM + - +
C Not isolated Not isolated - + +
D D1 O111:NM - + +
D2 O111:NM - + +
D3 O157:H7 + + +
D4 O157:H7 + + +
E E1 Orough:H2 - + +
E2 O26:H11 - + +

a(+) Denotes a positive CT-SMAC culture, EIA or stx PCR; (-) denotes a negative CT-SMAC culture, EIA, or stx PCR; CT-SMAC = cefixime-tellurite sorbitol MacConkey agar; EIA = enzyme immunoassay; PCR = polymerase chain reaction.

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