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A comparative study on the efficacy of the new quinolone alatrofloxacin in the treatment of experimental Legionellosis in guinea pigs

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Abstract

The in vivo efficacy of trovafloxacin, intraperitoneally administered as alatrofloxacin (CP-116,517), was assessed and compared with that of erythromycin, alone or in combination with rifampicin, in a model ofLegionella pneumophila pneumonia in guinea pigs. Trovafloxacin (5 mg/kg administered as alatrofloxacin once daily for 7 days) gave a survival rate of 100% in infected animals. Clearance of bacteria and of bacteria-induced lesions from lungs was achieved by day 6 post-inoculation. The lungs of trovafloxacin-treated animals remained free of bacteria at day 28 post-challenge. Trovafloxacin proved as effective as erythromycin administered intraperitoneally, but was superior to erythromycin alone, or in combination with rifampicin, when given orally.

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García-de-Lomas, J., Millás, E., Lázaro, M.A. et al. A comparative study on the efficacy of the new quinolone alatrofloxacin in the treatment of experimental Legionellosis in guinea pigs. Eur. J. Clin. Microbiol. Infect. Dis. 17, 420–423 (1998). https://doi.org/10.1007/BF01691575

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