title: Susceptibilities of 201 anaerobes to erythromycin, azithromycin, clarithromycin, and roxithromycin by oxyrase agar dilution and E test methodologies.
abstract: The susceptibility of 201 anaerobes to erythromycin, azithromycin, clarithromycin, and roxithromycin was tested by agar dilution and E test methods by using a commercially available plate and dish system (OxyDish) to provide anaerobic conditions. Plates were incubated for 48 h. MICs for 50% of strains tested and MICs for 90% of strains tested by agar dilution and E test methods corresponded within 1 doubling dilution for all compounds. When all antibiotics were considered together, agar and E test MICs were within 1 and 2 doubling dilutions of each other in 84 to 91% and > 99% of cases, respectively.
authors.affiliation: Department of Pathology (Clinical Microbiology), Hershey Medical Center, Pennsylvania 17033, USA.
authors.forename: S K
authors.initials: SK
authors.lastname: Spangler
authors.forename: M R
authors.initials: MR
authors.lastname: Jacobs
authors.forename: P C
authors.initials: PC
authors.lastname: Appelbaum
mesh_terms: D000362:Agar; D017963:Azithromycin / Q000494:pharmacology; D001421:Bacteria, Anaerobic / Q000187:drug effects* / Q000302:isolation & purification; D001424:Bacterial Infections / Q000188:drug therapy; D017291:Clarithromycin / Q000494:pharmacology; D004352:Drug Resistance, Microbial; D004917:Erythromycin / Q000494:pharmacology; D005069:Evaluation Studies as Topic; D006801:Humans; D008826:Microbial Sensitivity Tests / Q000379:methods* / Q000706:statistics & numerical data; D010105:Oxygenases; D015575:Roxithromycin / Q000494:pharmacology
chemical_list: D015575:Roxithromycin; D004917:Erythromycin; D017963:Azithromycin; D000362:Agar; D010105:Oxygenases; C072755:Oxyrase; D017291:Clarithromycin