Eschars are not common in cases of RMSF.Figure 2: Example of a later-stage rash in an RMSF patient.Healthcare providers should also look at routine blood tests, such as a complete blood cell count and a chemistry panel when making the diagnosis.For more in-depth information about signs and symptoms of RMSF, see: Centers for Disease Control and Prevention. Without prompt treatment, Rocky Mountain spotted fever can cause serious damage to internal organs, such as your kidneys and heart.Although it was first identified in the Rocky Mountains, Rocky Mountain spotted fever is most commonly found in the southeastern part of the United States. Rocky Mountain spotted fever (RMSF) is a bacterial disease spread through the bite of an infected tick. poor appetite. RMSF can be deadly if not treated early with the right antibiotic. In most of the western United States, the tick is more likely to be Dermacentor andersoni, the Rocky Mountain wood tick. Therefore, if your doctor suspects that you have Rocky Mountain spotted fever, he or she generally will begin treatment immediately, even if your blood tests are negative. Most people who get sick with RMSF will have a fever, headache, and rash.
Once symptoms develop, a person can die within 2 weeks without proper treatment. Once someone is bitten by an infected tick, Rocky Mountain spotted fever bacteria can spread throughout the bloodstream and lymphatic system. In the eastern United States and in California, the infected tick is usually Dermacentor variabilis, the American dog tick. Rocky Mountain spotted fever, (RMSF) is the most severe rickettsiosis in the United States.Figure 1: Example of an early-stage rash in an RMSF patient.RMSF the most severe spotted fever rickettsiosis in the United States. Saving Lives, Protecting People During the first 3 days of symptoms, an infected person usually has a fever of more than 102 degrees Fahrenheit and a severe headache. If you must walk in tick-infested areas, follow these precautions: Rocky Mountain spotted fever is treated with one of the Most people are cured after taking the antibiotics for five to seven days. If this happens, blood flow to the kidneys can decrease, causing kidney damage and, possibly, kidney failure. Most cases of Rocky Mountain spotted fever respond to appropriate antibiotic treatment within a week. headache. Patients with kidney failure may require dialysis. In the lungs, Rocky Mountain spotted fever can lead to an accumulation of fluid in the lungs (pulmonary edema) and severe breathing difficulties. abdominal pain.
Similar, but less severe diseases caused by closely related bacteria can be easily confused with RMSF. Rocky Mountain spotted fever also can cause jaundice (yellowing of the skin and eyes) as a result of liver injury.
It is not clear why some people get the disease and others do not. Other, later associated signs and symptoms include a skin rash, joint pains, diarrhea, and abdominal pain. Muscle aches, nausea and vomiting are common. Humans typically become infected in the spring and early summer. In cases of respiratory failure, mechanical ventilation (treatment with a machine that breathes for the patient) may be necessary.
Rocky Mountain spotted fever bacteria also may attack the brain directly, causing symptoms of encephalitis (brain infection) or meningoencephalitis (infection of the brain and its surrounding membranes).
Children represent less than 6% of spotted fever cases, but 22% of spotted fever fatalities.
Not everybody who is bitten by an infected tick develops Rocky Mountain spotted fever. Severely ill patients may require longer periods of treatment before fever will resolve, especially if they have experienced damage to organ systems.
Blood tests can confirm the diagnosis, but only two to three weeks after the onset of infection.
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