Rocky Mountain spotted fever


Rocky Mountain spotted fever

noun

Definition of ROCKY MOUNTAIN SPOTTED FEVER

:  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 rickettsia (Rickettsia rickettsii) usually transmitted by an ixodid tick and especially either the American dog tick or a wood tick (Dermacentor andersoni)

First Known Use of ROCKY MOUNTAIN SPOTTED FEVER

1905

Rocky Moun·tain spotted fever

noun \ˈräk-ē-ˈmant-ən-\   (Medical Dictionary)

Medical Definition of ROCKY MOUNTAIN SPOTTED FEVER

: 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 and Rocky Mountain wood tick

Rocky Mountain spotted fever

noun    (Concise Encyclopedia)

Typhus-like disease first seen in the Rocky Mountain region, caused by the bacterium Rickettsia rickettsii (see rickettsia) and transmitted by various ticks. In severe cases the rash bleeds more and is especially prominent on the wrists and ankles. Central nervous system involvement causes restlessness, insomnia, and delirium. Prostration may progress to coma, with death possible in a week or more. Mortality increases with age. Recovery is slow but usually complete as visual disturbances, deafness, and mental confusion pass. Prompt antibiotic treatment hastens it and reduces mortality. Prevention depends on avoiding tick bites, by wearing long, light-coloured clothing and insect repellent and inspecting for ticks. A vaccine reduces the risk of infection somewhat and of death greatly.

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