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   What causes Rocky Mountain spotted fever?

   • R. rickettsii, the bacterium that causes Rocky Mountain spotted fever, gets into your bloodstream from the bite of a tick. It attacks your blood vessels, muscle cells and tissues. This can lead to leaking blood vessels, excess fluid in your tissues, and damage to your muscles, nerves and organs.

   Rocky Mountain Spotted Fever: Causes, Symptoms & Treatment

   my.clevelandclinic.org/health/diseases/17838-rocky-mountain-spotted-fever

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   Is Rocky Mountain spotted fever life threatening?

   • RMSF can be life-threatening if not treated quickly with antibiotics. RMSF is found in most states in the U.S. Symptoms of Rocky Mountain spotted fever usually develop over a few days, often starting with a fever. Don’t wait for a rash to seek treatment. What is Rocky Mountain spotted fever?

   Rocky Mountain Spotted Fever: Causes, Symptoms & Treatment

   my.clevelandclinic.org/health/diseases/17838-rocky-mountain-spotted-fever

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   Is Rocky Mountain spotted fever a rickettsial disease?

   • (See also Overview of Rickettsial and Related Infections.) Rocky Mountain spotted fever is a rickettsial disease. RMSF is limited to the Western Hemisphere. Initially recognized in the Rocky Mountain states, it occurs in practically all of the United States and throughout Central and South America.

   Rocky Mountain Spotted Fever (RMSF) - Infectious Diseases - Merck

   www.merckmanuals.com/professional/infectious-diseases/rickettsiae-and-related-organisms/rocky-mountain-spotted-fever-rmsf

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2. my.clevelandclinic.org › health › diseasesRocky Mountain Spotted Fever: Causes, Symptoms & Treatment

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   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.

3. www.healthline.com › rocky-mountain-spotted-feverRocky Mountain Spotted Fever: Pictures and Long-Term Effects

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   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 tick. It causes...

4. www.cdc.gov › rocky-mountain-spotted-feverAbout Rocky Mountain Spotted Fever | Rocky Mountain Spotted ...

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   May 15, 2024 · 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.

5. www.hopkinsmedicine.org › health › conditions-andRocky Mountain Spotted Fever | Johns Hopkins Medicine

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   RMSF is caused by a bacterium that is spread to people by the bite of an infected tick. In different parts of the U.S., these ticks can transmit the RMSF bacteria: American dog tick. Rocky Mountain wood tick. Brown dog tick. Lone star tick. Who is at risk for Rocky Mountain spotted fever?

6. www.cdc.gov › rocky-mountain-spotted-fever › hcpClinical Signs and Symptoms | Rocky Mountain Spotted Fever ...

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   What to know. 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 may change as the illness progresses.

7. www.verywellhealth.com › rocky-mountain-spottedRocky Mountain Spotted Fever (RMSF): Pictures, Symptoms

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   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.

8. www.merckmanuals.com › professional › infectiousRocky Mountain Spotted Fever (RMSF) - Infectious Diseases ...

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   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. Epidemiology of RMSF. RMSF is limited to the Western Hemisphere.