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Volume 9, Number 10—October 2003

Research

Escherichia coli O157 Exposure in Wyoming and Seattle: Serologic Evidence of Rural Risk

Jason P. Haack*, Srdjan Jelacic†, Thomas E. Besser‡, Edward Weinberger*†, Donald J. Kirk§, Garry L. McKee¶, Shannon M. Harrison¶, Karl J. Musgrave¶, Gayle Miller¶, Thomas H. Price*#, and Phillip I. Tarr*†Comments to Author 
Author affiliations: *University of Washington School of Medicine, Seattle, Washington; †Children’s Hospital and Regional Medical Center, Seattle, Washington; ‡Washington State University, Pullman, Washington; §Star Valley Hospital, Afton, Wyoming; ¶Wyoming Department of Health, Cheyenne, Wyoming; #Puget Sound Blood Center, Seattle, Washington

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Table 1

Cattle and human density data for Lincoln and Natrona Counties, Wyoming, and King County, Washingtona (states of donation)

Characteristics of regions Population A
(Lincoln County)b Population B
(Natrona County)b Population C
(King County)b
Residents
14,573
66,533
1,737,034
Cattle
53,000
62,000
30,500
Cattle/km2
Cattle/resident
5.1
3.6
4.5
0.93
5.5
0.017
Residents/km2 1.4 4.8 315.4

aSource: reference 20.
Source: reference 21.

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