• Viral

    Viral

    Colorado tick fever

    by  • November 3, 2011 • C, Definitions, Infections, Viral

    an acute, benign febrile infection caused by an arenavirus, transmitted by the bite of the wood tick, Dermacentor andersoni, occurring in areas in which the tick is distributed, i.e., the Rocky Mountain area and Pacific slope of the United States and Canada, and characterized chiefly by a biphasic course and leukopenia. Called also mountain tick […]

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    virus (vi·rus)

    by  • November 3, 2011 • Definitions, Infections, V, Viral

    one of a group of minute infectious agents, with certain exceptions (e.g., poxviruses) not resolved in the light microscope, and characterized by a lack of independent metabolism and by the ability to replicate only within living host cells. Like living organisms, they are able to reproduce with genetic continuity and the possibility of mutation. They […]

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