title: Relapsing fever.
mesh_terms: D000328:Adult; D001769:Blood / Q000382:microbiology; D001898:Borrelia / Q000302:isolation & purification; D002140:California; D005260:Female; D006801:Humans; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000382:microbiology; D012061:Relapsing Fever / Q000382:microbiology* / Q000635:transmission