[Chagas' disease in the State of Maranhão, Brazil: record of acute cases from 1994 to 2008]. / Doença de Chagas no Estado do Maranhão, Brasil: registro de casos agudos no período de 1994 a 2008.

INTRODUCTION: Chagas' disease is not considered an endemic disease in the State of Maranhão. However, entomological surveys showed high natural vector infection indices and acute cases have been identified in the last few decades. This study aimed to analyze the social, demographic and environmental conditions involved in transmission. METHODS: The study describes acute Chagas' disease identified from 1994 to 2008. Information regarding the cases was obtained from the Information System for Notifiable Diseases (Sinan), National Health Foundation (Funasa) database and medical records. Entomological surveys were conducted from 2002. RESULTS: Data analysis identified 32 cases from 17 municipal districts, with 84.4% of patients from rural areas. The disease was more frequent in men (67%). The most frequent occupation was student, 38.9% of cases, followed by farmer and hunter, 27.8%. CONCLUSIONS: The study suggests that transmission was vectorial and occurred in the wild or peridomicile.

Doença de Chagas no Estado do Maranhão, Brasil: registro de casos agudos no período de 1994 a 2008 / Chagas' disease in the State of Maranhão, Brazil: record of acute cases from 1994 to 2008

INTRODUÇÃO: No Estado do Maranhão, a doença de Chagas não apresenta o padrão clássico de transmissão endêmica. No entanto, inquérito entomológico prévio constata altos índices de infecção natural dos vetores e casos agudos têm sido registrados nas últimas décadas, o que motivou o presente estudo que tem por objetivo avaliar as condições sociodemográficas e ambientais envolvidas na transmissão. MÉTODOS: Foram estudados os casos agudos de doença de Chagas de 1994 a 2008. Os dados relacionados aos pacientes foram obtidos do banco de dados do Sistema de Informação de Agravos de Notificação, dos livros de registros de endemias da Fundação Nacional de Saúde e de prontuários médicos. Investigação entomológica foi realizada a partir de 2002. RESULTADOS: Foram identificados 32 casos, procedentes de 17 municípios, sendo 84,4 por cento, da zona rural. O sexo masculino foi acometido em 67 por cento dos casos. A ocupação mais frequente foi a de estudante (38,9 por cento), seguida pela de lavrador e de caçador (27,8 por cento). CONCLUSÕES: Os dados analisados sugerem que a transmissão foi, predominantemente, vetorial nos ambientes silvestre e peridomiciliar.

INTRODUCTION: Chagas' disease is not considered an endemic disease in the State of Maranhão. However, entomological surveys showed high natural vector infection indices and acute cases have been identified in the last few decades. This study aimed to analyze the social, demographic and environmental conditions involved in transmission. METHODS: The study describes acute Chagas' disease identified from 1994 to 2008. Information regarding the cases was obtained from the Information System for Notifiable Diseases (Sinan), National Health Foundation (Funasa) database and medical records. Entomological surveys were conducted from 2002. RESULTS: Data analysis indentified 32 cases from 17 municipal districts, with 84.4 percent of patients from rural areas. The disease was more frequent in men (67 percent). The most frequent occupation was student, 38.9 percent of cases, followed by farmer and hunter, 27.8 percent. CONCLUSIONS: The study suggests that transmission was vectorial and occurred in the wild or peridomicile.