title: Spotted fever group rickettsiae in the lone star tick, Amblyomma americanum (Acari: Ixodidae).
mesh_terms: D000818:Animals; D001096:Arachnid Vectors / Q000382:microbiology*; D007629:Kentucky; D008297:Male; D008922:Mississippi; D009825:Oklahoma; D012281:Rickettsia / Q000302:isolation & purification*; D013781:Texas; D013987:Ticks / Q000382:microbiology*