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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.
Rocky Mountain spotted fever occurs mainly from March to September, when adult ticks are active and people are likely to be in tick-infested areas. In the southern states, the disease may occur throughout the year.
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Jul 12, 2018 · "Rocky Mountain spotted fever is an uncommon but very serious tick-borne illness that can lead to death if untreated," says Dr. Bobbi Pritt, a parasitic diseases expert at Mayo Clinic. It is very rare in Wisconsin. Only 69 cases have been reported from this state during the past five years.
May 22, 2023 · When to worry about fever. If you have a fever over 104°F (40°C), you should call your doctor. Seek medical help right away if you have a fever along with any of these symptoms: seizure; loss of consciousness; confusion; stiff neck; trouble breathing; severe pain anywhere in the body; swelling or inflammation of any part of the body
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Dec 18, 2023 · Rocky Mountain spotted fever is the most severe and most frequently reported rickettsial illness in the United States. The disease is caused by Rickettsia rickettsii, a species of bacteria...
- Mark Kortepeter
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%.
An infectious cause is highly likely in adults with a fever that lasts 4 days or less. A noninfectious cause is more likely to cause fever that lasts a long time or returns. Many cancers cause fever.
