Comparative in-vitro activity of levofloxacin, other fluoroquinolones, doxycycline and erythromycin against Ureaplasma urealyticum and Mycoplasma hominis
- 1 June 1999
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Antimicrobial Chemotherapy
- Vol. 43 (suppl_3) , 33-36
- https://doi.org/10.1093/jac/43.suppl_3.33
Abstract
The susceptibility of 56 Ureaplasma urealyticum and 57 Mycoplasma hominis strains to levofloxacin, ofloxacin, ciprofloxacin, fleroxacin, doxycycline and erythromycin was determined by an agar dilution method. The reference strain used was M. hominis PG 21. Agar plates containing serial dilutions of antibiotics (range 0.03-16 mg/L), and control plates (without antibiotics) were inoculated with bacteria suspended in modified Shepard's broth using a multipoint inoculator. Levofloxacin showed greater activity against all U. urealyticum and M. hominis strains compared with all other antibiotics tested. The MIC 90 values for U. urealyticum were as follows: levofloxacin, 1 mg/L; ofloxacin, 2 mg/L; ciprofloxacin, 4 mg/L; fleroxacin, 4 mg/L; doxycycline, 1 mg/L; erythromycin, 8 mg/L. The MIC 90 s for M. hominis were: levofloxacin, 1 mg/L; ofloxacin, 2 mg/L; ciprofloxacin, 4 mg/L; fleroxacin, 4 mg/L; doxycycline, 4 mg/L; erythromycin, ≥16 mg/L. In conclusion, the results of this study suggest that levofloxacin may be useful in the treatment of mycoplasma genital infections.Keywords
This publication has 0 references indexed in Scilit: