Barbeiros, Doença de Chagas, Triatomíneos, Vigilância Entomológica
Resumo
Introdução: Segundo a OMS temos cerca de 6 milhões de indivíduos infectados pelo parasito Trypanosoma cruzi no mundo. O mecanismo de transmissão vetorial continua sendo de grande importância na epidemiologia da doença, sendo, portanto, o alvo dos programas de controle. No Brasil observou-se uma notável diminuição de novos casos da infecção após a implementação das campanhas de controle vetorial. Objetivo: Avaliar a vigilância entomológica da DCh nos municípios da jurisdição da Superintendência Regional de Saúde de Governador Valadares (SRS/GV) nos anos de 2014 a 2019. Métodos: A área estudada corresponde a 51 municípios da mesorregião do Vale do Rio Doce, no Leste de Minas Gerais. Os dados foram disponibilizados pelo laboratório de referência em entomologia da SRS/GV. Os insetos capturados pelos moradores e enviados foram avaliados quanto ao hábito alimentar, estádio evolutivo, local de captura, espécie do triatomíneo e presença ou ausência de infecção pelo T. cruzi. Resultados: Foram encaminhados à SRS/GV 1.704 insetos, sendo 1.491 hematófagos, 107 fitófagos e 99 predadores. Avaliando os insetos hematófagos quanto ao estádio evolutivo constatou-se que 1.425 (95,6%) eram adultos e 66 (4,4%) eram ninfas, sendo a maioria capturados no intradomicílio (1.083/1.491). Foram examinados 1.225 insetos, sendo constatado a infecção pelo T. cruzi em 514 exemplares, revelando assim uma taxa de infecção natural de 42%. Dentre os insetos infectados, 407 (79,5%) exemplares foram capturados no intradomicílio, 96 (18,5%) no peridomicílio e 11 (2%) em locais não identificados. As seguintes espécies de triatomíneos foram identificadas na região: Triatoma vitticeps (936), Panstrongylus megistus (284), Panstrongylus diasi (244), Rhodnius neglectus (11) e Panstrongylus geniculatus (1). Foi constatado a presença de triatomíneos infectados em 46 municípios, com destaque para Conselheiro Pena (64), Tarumirim (48), Sobrália (46), Capitão Andrade (44), Itanhomi (36) e José Raydan (30). Conclusão: Os dados nos permitem afirmar que T. vitticeps é a espécie predominante na região, sendo capturados frequentemente insetos adultos no intradomicílio e com consideráveis taxas de infecção natural pelo T. cruzi. Vale ressaltar ainda o encontro de ninfas no intradomicílio que caracteriza um processo de colonização e reforça a necessidade de aprimoramento das ações de vigilância entomológica na região atendida pela SRS/GV.
Publicado
2021-03-01
Como Citar
Campos, C. F. M., & Assis, G. F. M. (2021). VIGILÂNCIA ENTOMOLÓGICA DA DOENÇA DE CHAGAS NA REGIÃO LESTE DE MINAS GERAIS, BRASIL. Revista Multidisciplinar Em Saúde, 2(1), 65. https://doi.org/10.51161/rems/740
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