Disk diffusion interpretive criteria for extended-spectrum cephalosporins with Haemophilus influenzae

J. H. Jorgensen, L. A. Maher, J. S. Redding

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Disk diffusion interpretive zone size criteria for use with Haemophilus test medium are proposed for five extended-spectrum cephalosporins. With cefuroxime, zones ≤24 mm in diameter indicated susceptibility, while zones ≤20 mm implied resistance. With cefotaxime, ceftazidime, ceftizoxime, and ceftriaxone, a single susceptible-zone size, ≥26 mm, is proposed.

Original languageEnglish (US)
Pages (from-to)1887-1889
Number of pages3
JournalJournal of clinical microbiology
Volume26
Issue number9
StatePublished - Jan 1 1988

ASJC Scopus subject areas

  • Microbiology (medical)

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