Decreasing Prevalence of β-Lactamase Production among Respiratory Tract Isolates of Haemophilus influenzae in the United States
Open Access
- 1 June 2005
- journal article
- Published by American Society for Microbiology in Antimicrobial Agents and Chemotherapy
- Vol. 49 (6) , 2561-2564
- https://doi.org/10.1128/aac.49.6.2561-2564.2005
Abstract
A total of 986 isolates of Haemophilus influenzae from patients with respiratory tract infections in 45 United States medical centers were characterized during the winter of 2002-2003. β-Lactamase production was noted with 26.2% of isolates; 14.6% were resistant to trimethoprim-sulfamethoxazole. Resistance to other relevant antimicrobial agents was extremely uncommon. In comparison to the results of four previous national surveys conducted since 1994, the prevalence of β-lactamase production with this pathogen appears to be decreasing.Keywords
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