Emerging Infectious Disease ISSN: 1080-6059

Antibiotic Resistance Patterns of Bacterial Isolates from Blood in San Francisco County, California, 1996-1999

Susan S. Huang*†

, Brian J. Labus†‡, Michael C. Samuel†‡, Dairian T. Wan†, and Arthur L. Reingold†‡

Author affiliations: *University of California San Francisco, San Francisco, California, USA; †California Department of Health Services, San Francisco, California, USA; ‡University of California Berkeley, Berkeley, California, USA;

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Figure 2

Increase in percentage of Staphylococcus aureus isolates resistant to methicillin and increase in percent of Enterococcus faecium resistant to vancomycin on a yearly basis from 1996 through the first quarter of 1999. Number of isolates per year, regardless of susceptibility, appears above each bar. Tests of trend showed significant increases in percent resistance for both organisms.

Figure 2. Increase in percentage of Staphylococcus aureus isolates resistant to methicillin and increase in percent of Enterococcus faecium resistant to vancomycin on a yearly basis from 1996 through the first quarter of 1999. Number of isolates per year, regardless of susceptibility, appears above each bar. Tests of trend showed significant increases in percent resistance for both organisms.

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