Levofloxacin showed comparable in vitro susceptibility to ciprofloxacin among Enterobacteriaceae, Pseudomonas aeruginosa, enterococci, and Staphylococcus aureus, while greater susceptibility was observed in Stenotrophomonas maltophilia and Staphylococcus epidermidis, mainly when oxacillin resistant. The susceptibility of Streptococcus pneumoniae to levofloxacin reached 99%.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC151783PMC
http://dx.doi.org/10.1128/AAC.47.2.816-819.2003DOI Listing

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