[Chagas polyneuropathies]

The results of a research realized in a small community in the countryside of the state of Bahia, Brazil, where there is high frequency of infection by Trypanosoma cruzi. are reported. By evaluation the neurological clinical examination of 99 individuals it was observed that the most frequent finding on those 50 patients with positive sorology there was a diminution of deep reflexes. Additionally, it was found that among the 20 patients in whom more than one altered deep reflex was present, in 18 cases there were concomitant sorological evidence of Chagas disease.