autopsy specimens of lung tissues from 15 patients that contracted legionellosis during the 1976 philadelphia outbreak of legionnaires disease were examined for the presence of legionella organisms and soluble antigens by indirect fluorescent-antibody ( ifa ) testing and by an enzyme-linked immunosorbent assay ( elisa ) with both polyclonal and monoclonal antibodies .
C0023240
legionellosis
C0023241
legionnaires disease