title: Lassa fever in Britain: an imported case.
mesh_terms: D000328:Adult; D001773:Blood Cells / Q000032:analysis; D003168:Complement Fixation Tests; D005260:Female; D005335:Fever of Unknown Origin; D006261:Headache; D006801:Humans; D007836:Lassa virus / Q000302:isolation & purification; D008131:London; D009325:Nausea; D012328:RNA Viruses / Q000302:isolation & purification*; D012807:Sierra Leone; D014195:Travel; D014777:Virus Diseases / Q000382:microbiology