title: Ecology of tick-borne agents in California. I. Spotted fever group rickettsiae.
mesh_terms: D000818:Animals; D001096:Arachnid Vectors; D002140:California; D003168:Complement Fixation Tests; D004463:Ecology; D006801:Humans; D051379:Mice; D011817:Rabbits / Q000382:microbiology; D051381:Rats; D012281:Rickettsia / Q000302:isolation & purification*; D012373:Rocky Mountain Spotted Fever / Q000382:microbiology* / Q000635:transmission; D012377:Rodentia / Q000382:microbiology*; D013987:Ticks / Q000382:microbiology*