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. 1979 Aug;16(2):186–189. doi: 10.1128/aac.16.2.186

Antibiotic Susceptibility of Haemophilus vaginalis (Corynebacterium vaginale) to 21 Antibiotics

Laurence R McCarthy 1, Patricia A Mickelsen 1, E Grover Smith 1,†
PMCID: PMC352819  PMID: 314776

Abstract

A total of 56 strains of Haemophilus vaginalis were tested for their in vitro susceptibility to 21 antimicrobial agents by an agar dilution method. All strains were inhibited by 1 μg or less of penicillin, ampicillin, carbenicillin, and vancomycin per ml. The cephalosporins were less active; 4 μg of cefazolin per ml, 16 μg of cephalothin per ml, or 128 μg of cephalexin per ml was required to inhibit all strains. Kanamycin, gentamicin, tobramycin, and neomycin were relatively inactive against H. vaginalis. All strains were inhibited by 4 μg of streptomycin per ml and 2 μg of chloramphenicol per ml. Only 57% of the strains were inhibited by 4 μg of tetracycline per ml, whereas 43% were inhibited by 16 to 64 μg/ml. The combination sulfamethoxazole/trimethoprim was relatively inactive against H. vaginalis. All strains tested exhibited minimal inhibitory concentrations of ≥128 μg when tested against colistin, nalidixic acid, and sulfadiazine. Erythromycin and clindamycin were the most active of the antibiotics tested; for all strains the minimal inhibitory concentrations were ≤0.06 μg/ml.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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