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  2. Feb 19, 2019 · Rocky Mountain spotted fever, (RMSF) is the most severe rickettsiosis in the United States. RMSF is a rapidly progressive disease and without early administration of doxycycline can be fatal within days. Signs and symptoms of RMSF begin 3-12 days after the bite of an infected tick.

  3. Feb 19, 2019 · Some patients who recover from severe RMSF may be left with permanent damage, including amputation of arms, legs, fingers, or toes (from damage to blood vessels in these areas); hearing loss; paralysis; or mental disability.

  4. Jul 2, 2018 · TIMELINE OF ROCKY MOUNTAIN SPOTTED FEVER (RMSF) SIGNS AND SYMPTOMS. RMSF can be fatal within 7-9 days. All patients with suspected RMSF should receive immediate antibiotic treatment with doxycycline. Use of antibiotics other than doxycycline is associated with a higher risk of fatal outcome from RMSF. Incubation period of 3-12 days following ...

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  5. Aug 25, 2022 · Rocky Mountain spotted fever (RMSF) is a serious illness you get from a tick bite. It’s caused by the bacterium Rickettsia rickettsii. Symptoms include a high fever and headache. Rash may start three or more days after other symptoms. RMSF can be life-threatening if not treated quickly with antibiotics. RMSF is found in most states in the U.S.

  6. Long-term effects. Facts and statistics. Prevention tips. What is Rocky Mountain spotted fever? Rocky Mountain spotted fever (RMSF) is a bacterial infection spread by a bite from an infected...

  7. These are the most common symptoms of RMSF: A non-itchy rash that usually starts on the hands, arms, feet, and legs and occurs 5 to 10 days after the bite. The rash consists of flat, pink spots. Fever. Headache. Confusion. Decreased appetite. Chills. Sore throat. Stomachache. Nausea or vomiting. Diarrhea. Body aches. Sensitivity to light.

  8. Symptoms and Signs. Diagnosis. Treatment. Prevention. Key Points. More Information. Rocky Mountain spotted fever (RMSF) is caused by Rickettsia rickettsii and transmitted by ixodid ticks. Symptoms are high fever, severe headache, and rash. (See also Overview of Rickettsial and Related Infections .)