 There are two approaches to treating Chagas disease : <unk> treatment , to kill the parasite ; and symptomatic treatment , to manage the symptoms and signs of the infection . Management uniquely involves addressing selective incremental failure of the <unk> nervous system . <unk> disease imparted by Chagas may eventually result in <unk> , <unk> and accelerated <unk> <unk> . The mechanisms that explain why Chagas targets the <unk> autonomic nervous system and <unk> the sympathetic autonomic nervous system remain poorly understood . 
