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Volume 8, Number 12—December 2002

Research

Antimicrobial Resistance of Escherichia coli O26, O103, O111, O128, and O145 from Animals and Humans

Carl M. Schroeder*, Jianghong Meng*, Shaohua Zhao†, Chitrita DebRoy‡, Jocelyn Torcolini‡, Cuiwei Zhao*, Patrick F. McDermott†, David D. Wagner†, Robert D. Walker†, and David G. White†
Author affiliations: *University of Maryland, College Park, Maryland, USA; †U.S. Food and Drug Administration, Laurel, Maryland, USA; ‡The Pennsylvania State University, University Park, Pennsylvania, USA

Main Article

Table 1

Source of isolation, genotype, serotype, and year of isolation of Escherichia coli isolates

Genotype Serotype Year
Source No. isolates STECa Other
E. coli O26 O103 O111 O128 O145 1976-1980 1981-1985 1986-1990 1991-1995 1996-2000
Human 137 37 100 19 23 37 53 5 0 19 4 87 27
Cow 408 140 268 230 65 60 18 35 15 16 37 60 280
Turkey 51 3 48 3 9 38 0 1 0 3 28 2 18
Chicken 49 0 49 14 21 10 3 1 5 5 21 5 13
Pig 26 3 23 9 7 2 7 1 10 6 6 1 3
Nonfood animals 81 12 69 11 43 0 13 14 0 19 30 5 27
Totals 752 195 557 286 168 147 94 57 30 68 126 160 368

aSTEC, Shiga toxin–producing E. coli, determined by the presence of stx1 and/or stx2.

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