Rocky Mountain Spotted Fever		RMSF

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Rocky Mountain spotted fever RMSF is the most severe tick borne rickettsial illness in the United States This disease is

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The Spotted Fever Tick Dermacentor andersoni is responsible for transmitting Rocky Mountain Spotted Fever RMSF RMSF is caused by the microorganism Rickettsia rickettsii and is the

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Click on either picture to go to Image Gallery RMSF rash

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Late stage rash on palm and forearm Photo courtesy of CDC

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Rocky Mountain Spotted Fever Rocky Mountain Spotted Fever RMSF is caused by Rickettsia rickettsii and is transmitted by two major ticks D variabilis in the East and D

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people to call RMSF black measles when it was described in the late nineteenth century If the infection is not treated it can damage several organ systems and sometimes lead to death The Rocky Mountain wood tick Dermacentor andersoni is one of the species of hard bodied ticks responsible for spreading the bacterium that causes Rocky Mountain spotted fever Once

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36 of 53 Increases in reported cases of Rocky Mountain spotted fever may reflect heightened awareness and surveillance for emerging tick borne diseases e g ehrlichiosis Biological factors e g

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37 of 54 Changes in reported cases of Rocky Mountain spotted fever might reflect alterations to surveillance algorithms for this and other tickborne diseases Biological factors e g changes in

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Ticks in dogs and cats With some 900 humans and an even greater number of dogs infected in the US every year Rocky Mountain Spotted Fever RMSF is the most frequently reported rickettsial disease in the country

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Figure 13 Early macular rash on sole of foot CDC Figure 14 Late petechial rash on palm and forearm CDC Rocky Mountain spotted fever can be a very severe illness and patients often require hospitalization Because R rickettsii

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Rocky Mountain Spotted Fever Rocky Mountain spotted fever RMSF is caused by tiny bacteria called rickettsiae that live inside the cells of infected individuals It has been reported throughout the United States but is

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of adult and nymphal Dermacentor ticks A history of tick bite or exposure to tick infested habitats is reported in approximately 60 of all cases of Rocky Mountain spotted fever Figure 10 Seasonal distribution of reported cases of Rocky Mountain spotted fever 1993 1996 CDC Over half of Rocky Mountain spotted fever infections are reported from the south

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Rocky Mountain spotted fever

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crushed tick or its parts can also pass this disease through any cuts or scrapes on your skin How can I protect myself from getting RMSF from my pets

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Rocky Mountain Spotted Fever Rocky Mountain spotted fever is spread by the American dog tick the lone star tick and the wood tick all of which like to live in wooded

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based on clinical characteristics of disease 1 spotted fever group 2 typhus group and 3 scrub typhus group Figure 1 Taxonomic classification of the order Rickettsiales Spotted Fever Group SFG Rickettsia rickettsii is the cause of Rocky Mountain spotted fever RMSF and is the prototype bacterium in the spotted fever group of rickettsiae

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