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Tick paralysis is believed to be due to toxins found in the tick's saliva that enter the bloodstream while the tick is feeding. The two ticks most commonly associated with North American tick paralysis are the Rocky Mountain wood tick (Dermacentor andersoni) and the American dog tick (Dermacentor variabilis); however, 43 tick species have been implicated in human disease around the world. [1]
Wild animals can experience injury from a variety of causes such as predation; intraspecific competition; accidents, which can cause fractures, crushing injuries, eye injuries and wing tears; self-amputation; molting, a common source of injury for arthropods; extreme weather conditions, such as storms, extreme heat or cold weather; and natural disasters.
Paralysis (pl.: paralyses; also known as plegia) is a loss of motor function in one or more muscles.Paralysis can also be accompanied by a loss of feeling (sensory loss) in the affected area if there is sensory damage.
Animals with "dumb" rabies appear depressed, lethargic, and uncoordinated. Gradually they become completely paralyzed. When their throat and jaw muscles are paralyzed, the animals will drool and have difficulty swallowing. In animals, rabies is a viral zoonotic neuro-invasive disease
Domestic animals (pets and livestock) are most notably affected by tick paralysis. Allergic reactions and tick-transmitted infectious diseases are possible but rarely diagnosed. Native animals are most notably affected by anaemia caused by carrying heavy burdens of ticks drawing large quantities of blood.
The most commonly used in vivo method is the mouse bioassay, which provides quantitative and qualitative data in case of a (suspected) PSP neurotoxin exposure; in vitro receptor binding assays provide equivalent data, while being animal-friendly.
Laterally recumbent animals are usually very close to death. In sheep, the symptoms may include drooling, a serous nasal discharge, stiffness, and incoordination. Abdominal respiration may be observed and the tail may switch on the side. As the disease progresses, the limbs may become paralyzed and death may occur.
One technique of hypnosis is to hold the chicken face up with its back on the ground, and then run a finger downwards from the chicken's wattles to just above its vent. The chicken's feet are exposed, which allows easy application of medication for foot mites, etc. Clapping hands or giving the chicken a gentle shove will waken it.