Tick Paralysis

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Paralysis, Tick


an acute parasitic disease of animals that results from poisoning with a toxin secreted by ticks as they feed on the blood of the host. It affects many species of domestic, agricultural, and wild mammals and birds, most often sheep, cattle, and dogs. It occurs in Australia, Africa, North America, southern Europe, and Asia. The disease is caused by various species of ixodoid and argasid ticks. The quantity and toxicity of toxin in a tick depends on its species, age, and physiological state. Young animals are most sensitive to the toxin.

The first symptoms of the disease are agitation and restlessness. Soon the agitation is replaced by depression, a muscular tremor develops, and pareses and paralyses rapidly develop in the posterior and then the anterior extremities and neck. The disease lasts three to five days and often results in death. Diagnosis is extremely difficult and depends on finding the ticks on the paralyzed animals. No specific treatment has been worked out. Preventive measures are directed toward protecting animals from tick bites.


Galuzo, I. G., and V. N. Kusov. “Paralich kleshchevoi.” In Veterinarnaia entsiklopediia, vol. 4. Moscow, 1973.


References in periodicals archive ?
Although, it is a rare disease in humans, tick paralysis is important to recognize because it can be fatal or nearly fatal.
Sensory system is usually intact and there will be no fever in tick paralysis.
Tick paralysis is more common in children than adults.
Tick paralysis (TP) is only transmitted by blood-feeding gravid adult female ticks by an incompletely characterized neurotoxin produced by the tick's salivary glands.
Editorial Note: The four cases described in this report illustrate the importance of considering tick paralysis in the differential diagnosis of persons with ascending paralysis who live in or visit tick-endemic regions.
For the scariest of all tick-related illnesses, tick paralysis, the treatment is astoundingly easy: removal of the tick.
This report summarizes the results of the investigation of a case of tick paralysis in Washington.
I would have had heart palpitations, but Chris used to work in a veterinarian's office, and she instantly suspected tick paralysis.