a serologic survey for the agents of rocky mountain spotted fever ( rmsf ) ( rickettsia rickettsii ) , borrelia spp . including the causative agent for lyme disease ( borrelia burgdorferi ) , and plague ( yersinia pestis ) was conducted on blood samples collected from 30 and 46 black-tailed jack rabbits ( lepus californicus ) from an urban environment in lubbock , texas ( usa ) during winter 1987 and the following spring 1988 , respectively .
C0039711
texas
C0041703
usa