Jun 1, 1976

In vitro activity of josamycin against aerobic gram-positive cocci and anaerobes

Antimicrobial Agents and Chemotherapy
E L WestermanN Moreland

Abstract

Josamycin, a new macrolide antibiotic, was compared with ampicillin, erythromycin, and clindamycin in vitro against 25 isolates each of pneumococci, enterococci, Staphylococcus aureus, S. epidermidis, and nonenterococcal hemolytic streptococci and against 25 anaerobes including 10 Bacteroides fragilis. Minimal inhibitory concentration and minimal bactericidal concentration data were obtained for the aerobic organisms, using serial twofold tube dilutions in Mueller-Hinton broth. Minimal inhibitory concentrations were determined for the anaerobes by the agar dilution technique. Josamycin was comparable to erythromycin and clindamycin in activity against the pneumococci, streptococci, and staphylococci and was more active than clindamycin against enterococci. It was somewhat less active than ampicillin against enterococci and S. epidermidis and showed its greatest in vitro activity against anaerobes, being comparable to clindamycin.

  • References3
  • Citations7

References

Mentioned in this Paper

Streptococcus
Genus staphylococcus
Bacteroides Infections
Dalacin C
Anaerobiosis
Ilotycin
Ukapen
Leucomycins
Streptococcus pneumoniae
Antibiotics

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