title: The ecology of Colorado tick fever in Rocky Mountain National Park in 1974. I. Objectives, study design, and summary of principal findings.
mesh_terms: D000818:Animals; D001096:Arachnid Vectors / Q000302:isolation & purification*; D003120:Colorado; D003121:Colorado Tick Fever / Q000635:transmission*; D004463:Ecology; D012088:Reoviridae Infections / Q000635:transmission*; D012377:Rodentia / Q000469:parasitology*; D013987:Ticks / Q000302:isolation & purification*