title: Tick paralysis in Brazil.
abstract: From July to December 1977 and from June to November 1978 the toxic effects of Amblyomma cajennense were studied in cattle sheep and goats. Locomotor disturbances commencing as hind-limb paralysis ascended to the upper nervous centres causing paralysis. This was observed in natural infections and confirmed experimentally. Tick paralysis is reported for the first time in Brazil, manifesting itself in a different form to that usually attributed clinically to the disease. Also for the first time reference is made to tick paralysis induced by all developmental stages of A. cajennense.
mesh_terms: D000818:Animals; D001938:Brazil; D002417:Cattle; D002418:Cattle Diseases / Q000503:physiopathology*; D002490:Central Nervous System / Q000503:physiopathology; D006041:Goats; D012756:Sheep; D012757:Sheep Diseases / Q000503:physiopathology*; D013045:Species Specificity; D013985:Tick Paralysis / Q000503:physiopathology / Q000662:veterinary*; D013986:Tick Toxicoses / Q000662:veterinary*; D013987:Ticks / Q000472:pathogenicity