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Multicenter Study
. 1999 Jan;43(1):185-6.
doi: 10.1128/AAC.43.1.185.

A 5-year surveillance study of 44,691 isolates of Haemophilus influenzae project Beta-Alert 1993-1997

A Derecola  1 , D L Butler, R L Kaplan, L A Miller, J A Poupard
Affiliations
Multicenter Study

A 5-year surveillance study of 44,691 isolates of Haemophilus influenzae project Beta-Alert 1993-1997

A Derecola et al. Antimicrob Agents Chemother. 1999 Jan.

Abstract

Beta-Alert is a surveillance program developed in 1993 to monitor the percentage of beta-lactamase-producing Haemophilus influenzae isolates obtained from specimens submitted to regional commercial laboratories. The results of this study demonstrate that levels of beta-lactamase producers have remained between 31 and 38% in the United States over the past 5 years.

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Figures

FIG. 1
FIG. 1
Variation in the number of β-lactamase- and non-β-lactamase-producing H. influenzae isolates by month from 1994 to 1997 (n = 38,941).
See this image and copyright information in PMC

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