Emerging Infectious Disease ISSN: 1080-6059

Antimicrobial Drug Resistance in Escherichia coli from Humans and Food Animals, United States, 1950–2002

Daniel A. Tadesse, Shaohua Zhao, Emily Tong, Sherry Ayers, Aparna Singh, Mary J. Bartholomew, and Patrick F. McDermott

Author affiliations: Food and Drug Administration, Laurel, Maryland, USA (D.A. Tadesse, S. Zhao, E. Tong, S. Ayers, A. Singh, P.F. McDermott); Food and Drug Administration, Rockville, Maryland, USA (M.J. Bartholomew)

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Figure 3

Trend analysis of selected antimicrobial agents among Escherichia coli isolates from humans (A) and animals (B), United States, 1950–2002. AMP-R, ampicillin resistance; STR-R, streptomycin resistance; TET-R, tetracycline resistance.

Figure 3. . . Trend analysis of selected antimicrobial agents among Escherichia coli isolates from humans (A) and animals (B), United States, 1950–2002. AMP-R, ampicillin resistance; STR-R, streptomycin resistance; TET-R, tetracycline resistance.

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