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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 5

Resistance of ampicillin-resistant isolates to non-β–lactam antibioticsa

Ampicillin-resistant isolates
River No. tested Ampicillin + 1 (%) Ampicillin >1 (%)
Arkansas-Little Rock, AR 80 3 (3.7)a 1 (1.2)
Arkansas-Witchita, KS 155 31 (20) 3 (1.9)
Canadian-Oklahoma City, OK 42 6 (14) 2 (4.7)
Chattahoochee-Atlanta, GA 101 21 (20.8) 2 (2.0)
Chicago-Chicago, IL 100 43 (43) 12 (12)
Colorado-Glenwood Springs, CO 100 32 (32) 24 (24)
Cuyahoga-Cleveland, OH 79 28 (35.4) 10 (12.6)
Des Moines-Des Moines, IA 105 50 (47.6) 8 (7.6)
Hudson-New York, NY 108 20 (18.5) 7 (6.5)
Kansas-Topeka, KS 104 44 (42.3) 2 (1.9)
Mississippi-New Orleans, LA 42 10 (23.8) 4 (9.5)
Mississippi-Minneapolis, MN 115 19 (16.5) 7 (6.0)
Mississippi-St. Louis, MO 161 46 (28.8) 10 (6.2)
Missouri-Parkville, MO 182 30 (16.4) 11 (6.0)
Ohio-Cincinnati, OH 144 16 (11.1) 4 (2.7)
Ohio-Louisville, KY 141 22 (15.6) 7 (4.9)
Ohio-Pittsburgh, PA 54 14 (25.9) 5 (9.2)
Ohio-Wheeling, WV 50 2 (4) 0 (0)
Platte-Grand Island, NE 65 11 (16.9) 3 (4.6)
Scioto-Columbus, OH 59 10 (16.9) 3 (5.0)
Wabash-Terre Haute, IN 109 30 (27.5) 12 (11)
White-Indianapolis, IN 106 17 (16) 5 (4.7)

a Ampicillin + 1 = resistance to ampicillin and at least one non-β–lactam. Ampicillin >1 = resistance to ampicillin and 2 or more non-β–lactams. Non-β–lactam antibiotics tested: ciprofloxacin, tetracycline, chloramphenicol, kanamycin, and streptomycin.

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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