title: Persistent Trichomonas vaginalis infection due to a metronidazole-resistant strain.
mesh_terms: D000328:Adult; D002170:Canada; D004352:Drug Resistance, Microbial; D005260:Female; D006801:Humans; D008795:Metronidazole / Q000494:pharmacology*; D012008:Recurrence; D014247:Trichomonas Vaginitis / Q000188:drug therapy / Q000469:parasitology*; D014246:Trichomonas vaginalis / Q000187:drug effects*
chemical_list: D008795:Metronidazole