Picture of Rocky Mountain Spotted Fever (Ankles)
Rocky Mountain spotted fever (RMSF) is a disease carried by ticks and caused by the bacterium Rickettsia rickettsii. It can be transmitted to humans through tick bites and is potentially fatal if not diagnosed and treated early. Symptoms of the illness include headache, fever, muscle pain, abdominal pain, and vomiting. Sometimes a red rash containing hemorrhagic macules and papules may develop several days into the infection. Doxycycline is considered the first-line treatment for the infection. Treatment is most effective when it is initiated within the first 5 days of the occurrence of symptoms.
Text Reference: Centers for Disease Control and Prevention: "Rocky Mountain Spotted Fever (RMSF)"