What Is Rocky Mountain Spotted Fever?

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Definition

Rocky Mountain spotted fever is an infectious disease brought on by a specific type of bacteria carried by ticks.


Alternative Names

Spotted fever


Causes, incidence, and risk factors

Rocky Mountain spotted fever is caused by Rickettsia rickettsii (R. Rickettsii), which is carried by ticks. The bacteria spread to humans through a tick bite.

In the western United States, the bacteria are carried by the wood tick, and in the eastern U.S. it is carried by the dog tick. However, other ticks...

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