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Volume 8, Number 7—July 2002
Research

Antibiotic Resistance of Gram-Negative Bacteria in Rivers, United States

Ronald J. Ash*Comments to Author , Brena Mauck*, and Melissa Morgan*
Author affiliations: *Washburn University, Topeka, Kansas, USA;

Main Article

Table 1

Ampicillin-resistant bacteria, U.S. rivers

River Na log10 CFU/mLb % ampicillin-resistant
Arkansas-Little Rock, AR 2 3.09–3.37 (3.25) 6.6–21.0
Arkansas-Witchita, KS 4 3.09–4.05 (3.66) 10.4–25.7
Canadian-Oklahoma City, OK 2 3.03–4.36 (4.08) 22.6–24.1
Chattahoochee-Atlanta, GA 2 2.32–2.66 (2.52) 34.5–38.4
Chicago-Chicago, IL 1 4.21 26.9
Colorado-Glenwood Springs, CO 1 2.56 59.2
Cuyahoga-Cleveland, OH 1 3.45 26.4
Des Moines-Des Moines, IA 3 2.66–3.81 (3.40) 13.7–34
Hudson-New York, NY 3 2.94–4.06 (3.80) 10.1–36.6
Kansas-Topeka, KS 24 2.86–4.15 (3.67) 4.9–52.5
Mississippi-New Orleans, LA 1 3.09 5.9
Mississippi-Minneapolis, MN 2 2.89–3.22 (3.09) 19.7–23.7
Mississippi-St. Louis, MO 4 3.93–4.61 (4.31) 6.7–73.0
Missouri-Parkville, MO 7 3.28–4.70 (4.08) 6.1–21.5
Ohio-Cincinnati, OH 6 2.86–4.80 (4.15) 20.0–53.0
Ohio-Louisville, KY 4 2.59–3.70 (3.22) 12.4–20.0
Ohio-Pittsburgh, PA 1 2.53 15.7
Ohio-Wheeling, WV 1 2.76 32.0
Platte-Grand Island, NE 3 3.20–3.56 (3.32) 3.5–33.9
Scioto-Columbus, OH 1 2.80 3.9
Wabash-Terre Haute, IN 3 2.81–3.19 (3.04) 17.0–25.0
White-Indianapolis, IN 1 4.36 22.5

aRefers to the number of visits to each site.
bTotal CFU isolated on Luria-Bertani medium; range and mean (in parentheses) are given for sites sampled more than once.

Main Article

Page created: July 16, 2010
Page updated: July 16, 2010
Page reviewed: July 16, 2010
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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