Q fever; complement-fixing antibodies with C. burnitii antigens in various geographic areas and occupational groups in the United States.
D000906:Antibodies; D000941:Antigens; D006801:Humans; D011778:Q Fever; D012282:Rickettsia Infections; D014481:United States
D000906:Antibodies; D000941:Antigens
ANTIGENS AND ANTIBODIES; RICKETTSIAL DISEASES