title: A new leptospiral vaccine for use in man. II. Clinical and serologic evaluation of a field trial with volunteers.
mesh_terms: D000372:Agglutination Tests; D001428:Bacterial Vaccines / Q000009:adverse effects / Q000592:standards*; D002986:Clinical Trials as Topic; D006801:Humans; D007557:Israel; D007919:Leptospira; D007922:Leptospirosis / Q000276:immunology*; D010919:Placebos; D012882:Skin Tests
chemical_list: D001428:Bacterial Vaccines; D010919:Placebos