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  2. RMSF is transmitted, or spread, through the bite of a tick that’s infected with a bacterium known as Rickettsia rickettsii. The bacteria spread through your lymphatic system and multiply in your...

  3. Aug 25, 2022 · Can Rocky Mountain spotted fever spread from person to person? No, Rocky Mountain spotted fever can’t spread from person to person (it’s not contagious). How do I know if I’ve been bitten by a tick? If you don’t find a tick on you, it can be hard to know if a tick bit you.

  4. May 15, 2024 · Long-term Effects of RMSF R. rickettsii infects the endothelial cells that line the blood vessels causing vasculitis. As infection continues, localized bleeding or clotting in the brain or other organs may occur.

  5. May 15, 2024 · Key points. The most common symptoms of Rocky Mountain spotted fever (RMSF) are a fever, headache, and rash. RMSF is spread through the bite of an infected tick. There is no vaccine to prevent RMSF. RMSF can be deadly if not treated early with doxycycline.

  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. May 15, 2024 · People who were bitten by a tick should be advised to watch for signs and symptoms and see their healthcare provider if fever, rash, or other symptoms develop within two weeks of tick bite. Treatment for asymptomatic individuals is not currently recommended.

  8. 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.) Rocky Mountain spotted fever is a rickettsial disease.

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