Rocky Mountain spotted fever (RMSF) is caused by the bacterium Rickettsia rickettsii.
Symptoms include fever, headaches, myalgia; characteristic spotted rash* begins on wrists, ankles, palms, and soles, and may be absent early in the disease. Treatment is usually doxycycline. *RMSF rash photo courtesy of Ed Masters, MD.
Humans and pets may contract RMSF. RMSF maybe life threatening. Need to get early appropriate treatment.