title: Lassa fever.
mesh_terms: D003140:Communicable Disease Control / Q000639:trends; D004641:Emigration and Immigration; D006801:Humans; D007835:Lassa Fever / Q000453:epidemiology / Q000517:prevention & control*; D007883:Legislation, Medical; D010356:Patient Isolation; D012306:Risk; D006113:United Kingdom