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RMSF is most often transmitted by the American dog tick in the Eastern, Central and Western United States; by the Rocky Mountain wood tick in the Rocky Mountain states; and by the brown dog tick in the Southwestern United States, along the U.S.-Mexico border. RMSF can be rapidly fatal if not treated within the first 5 days of symptoms.
Oct 7, 2022 · Rocky Mountain spotted fever (RMSF) is a disease caused by the bacteria Rickettsia rickettsii (transmitted by tick bites to humans) that has nonspecific symptoms of fever, chills, headache, and muscle aches with progression to a rash about five to 10 days after an initial bite by an infected tick. RMSF is the most common fatal tick-borne ...
Jan 10, 2023 · Trusted Source Centers for Disease Control and Prevention (CDC) Governmental authority Go to source. like splotches or dots. nausea. vomiting. stomach pain. headache. muscle pain. appetite loss. The symptoms of RMSF typically become apparent 4–10 days after exposure to the bacterium.
Rocky Mountain spotted fever (RMSF) testing includes a blood sample used to look for proteins (antibodies) that the body makes to fight RMSF infections. RMSF is a serious bacterial infection caused by a bite from an infected tick. In most people, antibodies can't be found until at least a week after infection.
Overview. Rocky Mountain spotted fever (RMSF) is one of about a dozen spotted fever illnesses found in the Americas, Europe, Asia and Australia. All are caused by bacteria belonging to the genus Rickettsia, a group of pleomorphic (shape-changing), non-motile microbes that replicate only inside of eukaryotic host cells.
Dec 16, 2020 · How to Contact the Rickettsial Zoonoses Branch at CDC. The general public and healthcare providers should first call 1-800-CDC-INFO (1-800-232-4636) for questions regarding RMSF and other rickettsial diseases. If a consultation with a CDC scientist specializing in rickettsial diseases is advised, your call will be appropriately forwarded.
May 19, 2023 · Symptoms usually develop about 2 to 14 days after the tick bite. They may include: Chills and fever. Confusion. Headache. Muscle pain. Rash -- usually starts a few days after the fever; first appears on wrists and ankles as spots that are 1 to 5 mm in diameter, then spreads to most of the body.
