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  2. May 7, 2019 · Rocky Mountain spotted fever (RMSF) is a bacterial disease spread through the bite of an infected tick. Most people who get sick with RMSF will have a fever, headache, and rash. RMSF can be deadly if not treated early with the right antibiotic.

  3. Rocky Mountain spotted fever; Other names: Blue disease, Brazilian spotted fever, Tobia fever, new world spotted fever, tick-borne typhus fever, São Paulo fever: Petechial rash on the arm caused by Rocky Mountain spotted fever: Specialty: Infectious disease: Symptoms: Early: Fever, headache Later: Rash: Complications: Hearing loss, loss of limbs

    • 2 to 14 days after infection
  4. Jul 17, 2023 · Rocky Mountain spotted fever (RMSF) is an acute febrile tick-borne illness caused by Rickettsia rickettsii. In North America, it is both the most severe and the most common rickettsial infection. Without prompt antibiotic treatment, mortality rates are as high as 20 to 30 percent.

    • Jessica Snowden, Kari A. Simonsen
    • 2023/07/17
  5. Key Points. Despite its name, Rocky Mountain spotted fever (RMSF) occurs in practically all of the United States and throughout Central and South America. Small-vessel vasculitis can cause serious illness affecting the central nervous system, lungs, heart, kidneys, liver, and spleen; untreated mortality is about 20%.

  6. Aug 25, 2022 · Rocky Mountain spotted fever (RMSF) is an illness you get from the bacteria Rickettsia rickettsii ( R. rickettsii). It spreads through tick bites. Symptoms start out similar to many other illnesses, including headache, fever and rash. But if not treated right away, RMSF can be life-threatening.

  7. The rash (non-itching) consists of countless tiny red spots that initially appear on the hands and feet, but later become more widespread, including on the soles of the feet. Causative agent A bacterium with the scientific name Rickettsia rickettsii.

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