Rocky Mountain Spotted Fever<span> (</span>RMSF<span>) </span>Rocky Mountain spotted fever<span> (</span>RMSF<span>) is a tickborne disease </span>caused<span> by the bacterium Rickettsia rickettsii. This organism is a</span>cause<span> of potentially fatal human illness in North and South America, and is transmitted to humans by the bite of infected tick species</span>
