Picture of Rocky Mountain Spotted Fever (Legs)
Rocky mountain spotted fever (RMSF) is a tick-borne illness caused by the Rickettsia rickettsii bacteria. Symptoms develop 2 to 14 days after a tick bite and may include fever, rash, headache, muscle aches, nausea, vomiting, and more. The infection is potentially fatal because it causes inflammation of blood vessels (vasculitis) and increases the risk of blood clots. Prompt treatment with antibiotics is warranted in cases of RMSF.
Text Reference: "Rocky Mountain Spotted Fever." Centers for Disease Control and Prevention.