title: Trends in ciprofloxacin nonsusceptibility and levofloxacin resistance among Streptococcus pneumoniae isolates in North America.
authors.forename: J A
authors.initials: JA
authors.lastname: Karlowsky
authors.forename: L
authors.initials: L
authors.lastname: Nealy
authors.forename: D F
authors.initials: DF
authors.lastname: Sahm
authors.forename: C
authors.initials: C
authors.lastname: Thornsberry
authors.forename: M E
authors.initials: ME
authors.lastname: Jones
mesh_terms: D000890:Anti-Infective Agents / Q000494:pharmacology; D002939:Ciprofloxacin / Q000494:pharmacology*; D006801:Humans; D064704:Levofloxacin; D008826:Microbial Sensitivity Tests / Q000379:methods; D009656:North America; D015242:Ofloxacin / Q000494:pharmacology; D011008:Pneumococcal Infections / Q000382:microbiology; D011159:Population Surveillance; D013296:Streptococcus pneumoniae / Q000187:drug effects*
chemical_list: D000890:Anti-Infective Agents; D002939:Ciprofloxacin; D064704:Levofloxacin; D015242:Ofloxacin