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  1. 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%. Symptoms (severe headache, chills ...

  2. Jul 14, 2019 · Rocky Mountain spotted fever is the most dangerous of all of the spotted fevers. If left untreated, the disease can be fatal in 20 percent of cases or more (in comparison, Lyme disease is ...

  3. Feb 27, 2022 · A tick bite can infect humans and animals with bacteria, viruses and protozoans (organisms made up of one cell) that can cause diseases. Some of these conditions can be very serious and may include: Lyme disease. Tularemia. Ehrlichiosis. Rocky Mountain spotted fever. Anaplasmosis. Babesiosis.

  4. Oct 10, 2014 · 840. Neurologic Manifestations of Rocky Mountain Spotted Fever in Children and Adults. Background. Rocky Mountain Spotted Fever (RMSF) is the most common rickettsial disease in the U.S., and central nervous system (CNS) involvement has been reported. Despite this association, there are limited data on the spectrum of neurologic disease ...

  5. Mar 3, 2022 · Left untreated, malaria can cause hemolytic anemia. Rocky Mountain spotted fever: This infection spreads when ticks infected with the bacteria Rickettsia rickettsi bite people. Haemophilus influenza disease:These are infections caused by the bacteria H. influenza.

  6. Jul 20, 2017 · Unlike Rocky Mountain spotted fever and Lyme disease, ehrlichiosis is most likely to affect older adults or people with a weakened immune system. Additionally, a rash is much less common in ...

  7. Rocky Mountain spotted fever (RMSF) is rare in Minnesota, but isolated cases have been reported from various parts of the state. The disease is most commonly reported in south-central and southeastern states. The illness is caused by bacteria called Rickettsia rickettsii, which is transmitted locally by the tick species Dermacentor variabilis ...