NONPATHOGENIC RICKETTSIAS RELATED TO THE SPOTTED FEVER GROUP ISOLATED FROM TICKS, DERMACENTOR VARIABILIS AND DERMACENTOR ANDERSONI FROM EASTERN MONTANA.
D000818:Animals; D000937:Antigen-Antibody Reactions; D000941:Antigens; D003168:Complement Fixation Tests; D003870:Dermacentor; D006168:Guinea Pigs; D007106:Immune Sera; D009009:Montana; D009500:Neutralization Tests; D012281:Rickettsia; D012373:Rocky Mountain Spotted Fever; D013987:Ticks
D000941:Antigens; D007106:Immune Sera
ANTIGEN-ANTIBODY REACTIONS; ANTIGENS; COMPLEMENT FIXATION TESTS; GUINEA PIGS; IMMUNE SERUMS; MONTANA; NEUTRALIZATION TESTS; RICKETTSIA; ROCKY MOUNTAIN SPOTTED FEVER; TICKS