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  2. Rocky Mountain spotted fever (RMSF) is a bacterial infection spread by a bite from an infected tick. It causes vomiting, a sudden high fever around 102 or 103°F, headache, abdominal pain, rash ...

  3. May 7, 2019 · One of the deadliest tickborne diseases in the Americas. 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.

  4. 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.

  5. Mar 25, 2024 · Rocky Mountain spotted fever (RMSF) is a bacterial illness caused by a bite from an infected tick. Symptoms include high fever and widespread rash. In the United States, there are 4,000–6,000 reports of tick-borne spotted fevers, including RMSF, each year. It's the deadliest tick-borne illness in the world.

    • Ann Pietrangelo
  6. Key points about Rocky Mountain spotted fever. RMSF is caused by a bacterium that is spread to people by the bite of an infected tick. Symptoms include a rash, fever, headache, decreased appetite, chills, sore throat, confusion, stomachache, nausea or vomiting, diarrhea, body aches, and sensitivity to light. Treatment includes antibiotics and ...

  7. Jun 10, 2019 · Rocky Mountain spotted fever (RMSF) is a serious, sometimes deadly, bacterial disease spread through the bite of an infected tick. Roughly 4,000-6,000 tickborne spotted fevers, including RMSF, are reported in the United States each year. More than 60% of reported RMSF cases occur in five states (North Carolina, Tennessee, Oklahoma, Arkansas ...

  8. Feb 19, 2019 · Rash usually develops 2-4 days after fever begins. The look of the rash can vary widely over the course of illness. Some rashes can look like red splotches and some look like pinpoint dots. While almost all patients with RMSF will develop a rash, it often does not appear early in illness, which can make RMSF difficult to diagnose.

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