tick paralysis

tick paralysis
tick paralysis n a progressive spinal paralysis that moves upward toward the brain in humans or lower animals and that is caused by a neurotoxin secreted by some ticks (as Dermacentor andersoni) and injected into the host during feeding

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a progressive, ascending type of flaccid paralysis seen in children and domestic animals following the bite of certain ticks. In the northwestern United States and western Canada it is usually caused by Dermacentor andersoni, and in other parts of the world numerous other ticks have been implicated, including species of Amblyomma, Haemaphysalis, Ixodes, and Rhipicephalus. It is usually the result of toxins from the tick's saliva that enter the central nervous system of the host.

Medical dictionary. 2011.

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Look at other dictionaries:

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  • tick paralysis — noun : an ascending paralysis in man or lower animals caused by a neurotoxin secreted by some ticks (as Dermocentor andersoni) and injected into the host during feeding …   Useful english dictionary

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  • tick — I. /tɪk / (say tik) noun 1. a slight, sharp recurring click or beat, as of a clock. 2. Colloquial a moment or instant: hang on just a tick. 3. a small mark, as a hooked, sloping dash (formed by two strokes at an acute angle) serving to draw… …  

  • tick — tick1 /tik/, n. 1. a slight, sharp, recurring click, tap, or beat, as of a clock. 2. Chiefly Brit. Informal. a moment or instant. 3. a small dot, mark, check, or electronic signal, as used to mark off an item on a list, serve as a reminder, or… …   Universalium

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