title: Q fever; an immunological comparison of strains.
authors.forename: N H
authors.initials: NH
authors.lastname: TOPPING
authors.forename: C C
authors.initials: CC
authors.lastname: SHEPARD
authors.forename: R J
authors.initials: RJ
authors.lastname: HUEBNER
mesh_terms: D006801:Humans; D007154:Immune System Diseases; D007109:Immunity; D011778:Q Fever; D012282:Rickettsia Infections; D013180:Sprains and Strains