单词	Rocky Mountain spotted fever
释义	Rocky Mountain spotted fever noun : an acute disease that is characterized by chills, fever, prostration, pains in muscles and joints, and a red to purple eruption and that is caused by a rickettsial bacteria (Rickettsia rickettsii) usually transmitted by an ixodid tick and especially the American dog tick, brown dog tick, or a wood tick (Dermacentor andersoni) Word History First Known Use 1905, in the meaning defined above Medical Definition Rocky Mountain spotted fever noun Rocky Moun·​tain spotted fever ˈräk-ē-ˈmau̇nt-ᵊn-  : an acute bacterial disease that is characterized by chills, fever, prostration, pains in muscles and joints, and a red purple eruption and that is caused by a bacterium of the genus Rickettsia (R. rickettsii) usually transmitted by ixodid ticks and especially by the American dog tick, brown dog tick, and Rocky Mountain wood tick
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