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Mar 25, 2024 · Rocky Mountain spotted fever (RMSF) is a serious disease you get from a tick bite, causing fever and central nervous system symptoms. Here's what to know.
- Ann Pietrangelo
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.
- How Common Is RMSF?
- Where Is RMSF Most Commonly Found?
- What Time of Year Is RMSF Most Commonly Reported?
- What Is The Fatality Rate of RMSF?
Around 2,000 cases of RMSF are reported to the Centers for Disease Control and Prevention(CDC) each year. People who live close to wooded or grassy areas and people who are in frequent contact with dogs have a higher risk of infection.
Rocky Mountain spotted fever got its name because it was first seen in the Rocky Mountains. However, RMSF is more frequently found in the southeastern part of the United States, as well as parts of: 1. Canada 2. Mexico 3. Central America 4. South America In the United States, 5 statessee over 60 percent of RMSF infections: 1. North Carolina 2. Okla...
The infection can occur at any time of the year, but is more common during the warm weather months, when ticks are more active and people tend to spend more time outside. Most casesof RMSF occur during May, June, July, and August.
RMSF can be fatal. However, in the United States overall, less than 1 percent of people infected with RMSF will die from the infection. Most fatalities occur in the very old or very young, and in cases where treatment was delayed. According to the CDC, children under 10 years of age are 5 timesmore likely to die from RMSF than adults.
Pathophysiology |. 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.)
Rocky Mountain spotted fever (or "black measles" because of its characteristic rash) was recognized in the early 1800s, and in the last 10 years of the 1800s (1890–1900) it became very common, especially in the Bitterroot Valley of Montana.
Yellow Dog Tick. Rocky Mountain Spotted Fever. Rocky Mountain spotted fever is a potentially fatal that is transmitted by dog ticks and wood ticks. It causes a rash, headache, and high fever. People become infected when a tick carrying the infection bites them.
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What is Rocky Mountain spotted fever?
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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.
