Quantitative antibiotic susceptibility testing: Haemophilus influenzae type B.

R L D'Agostino; R C Tilton

PubMed · 1108755

Quantitative antibiotic susceptibility testing: Haemophilus influenzae type B.

Abstract

Twelve strains of Haemophilus influenzae were tested for susceptibility to gentamicin, ampicillin, chloramphenicol and cephalothin using two methods, agar dilution and microdilution (broth). Although inocula and incubation conditions were standardized, significant differences in the minimal inhibitory concentration (MIC) were seen as a result of growth media. Method dependent differences were also observed for some antibiotics. Notwithstanding such variation, high level resistance of H. influenzae to ampicillin was readily detected by either broth or agar dilution tests.

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Agar Ampicillin Anti-Bacterial Agents Cephalothin Chloramphenicol Gentamicins Haemophilus influenzae Indicator Dilution Techniques Microbial Sensitivity Tests Penicillin Resistance Journal Article

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R L D'Agostino, R C Tilton. Quantitative antibiotic susceptibility testing: Haemophilus influenzae type B.. https://pubmed.ncbi.nlm.nih.gov/1108755/

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