title: Correlation between infection rate of triatominies and Chagas Disease in Southwest of Bahia, Brazil: a warning sign?
abstract: Chagas disease, caused by the Trypanosoma cruzi, has a wide distribution in South America, and its main method of control is the elimination of triatomines. It is presented here the geographic distribution and the rate of natural infection by T. cruzi of triatomines collected and evaluated from 2008 to 2013 in southwest of Bahia. Triatomines were captured in the intradomiciliary and peridomiciliary areas of five cities located in the southwest of Bahia state, identified, and analyzed for the presence of trypanosomatids in their feces. During the study period the number of patients suspected for acute Chagas disease was recovered from the Notifiable Diseases Information System (SINAN). 8966 triatomines were captured and identified as belonging to eight species. Twenty-six presented themselves infected, being Triatoma sordida the most abundant and with the highest percentage of infection by T. cruzi. Tremedal was the city with the highest number of cases of acute Chagas' disease reported to SINAN. All cities showed triatomines infected with T. cruzi, so there is considerable risk of vectorial transmission of Chagas disease in the southwestern Bahia state, evidencing the need for vector transmission control programs and preventive surveillance measures.
authors.affiliation: Controle de Doenças Endêmicas, Vigilância Epidemiológica, 20ª Diretoria Regional de Saúde, Secretaria de Saúde do Estado da Bahia, Rua João Pereira, s/n, São Vicente, 45000-115 Vitória da Conquista, BA, Brasil.
authors.forename: Eliezer A DA
authors.initials: EA
authors.lastname: Silveira
authors.affiliation: Instituto Multidisciplinar em Saúde, Campus Anísio Teixeira, Universidade Federal da Bahia, Rua Rio de Contas, 58, Candeias, 45029-094 Vitória da Conquista, BA, Brasil.
authors.forename: Israel S
authors.initials: IS
authors.lastname: Ribeiro
authors.affiliation: Controle de Doenças Endêmicas, Vigilância Epidemiológica, 20ª Diretoria Regional de Saúde, Secretaria de Saúde do Estado da Bahia, Rua João Pereira, s/n, São Vicente, 45000-115 Vitória da Conquista, BA, Brasil.
authors.forename: Miguel S
authors.initials: MS
authors.lastname: Amorim
authors.affiliation: Controle de Doenças Endêmicas, Vigilância Epidemiológica, 20ª Diretoria Regional de Saúde, Secretaria de Saúde do Estado da Bahia, Rua João Pereira, s/n, São Vicente, 45000-115 Vitória da Conquista, BA, Brasil.
authors.forename: Dalva V
authors.initials: DV
authors.lastname: Rocha
authors.affiliation: Programa de Controle da Doença de Chagas, Vigilância Epidemiológica, Secretaria de Saúde do Estado da Bahia, Avenida ACM, s/n, Iguatemi, 41820.300 Salvador, BA, Brasil.
authors.forename: Helder S
authors.initials: HS
authors.lastname: Coutinho
authors.affiliation: Instituto Multidisciplinar em Saúde, Campus Anísio Teixeira, Universidade Federal da Bahia, Rua Rio de Contas, 58, Candeias, 45029-094 Vitória da Conquista, BA, Brasil.
authors.forename: Leandro M DE
authors.initials: LM
authors.lastname: Freitas
authors.affiliation: Instituto Multidisciplinar em Saúde, Campus Anísio Teixeira, Universidade Federal da Bahia, Rua Rio de Contas, 58, Candeias, 45029-094 Vitória da Conquista, BA, Brasil.
authors.forename: Laize
authors.initials: L
authors.lastname: Tomazi
authors.affiliation: Instituto Multidisciplinar em Saúde, Campus Anísio Teixeira, Universidade Federal da Bahia, Rua Rio de Contas, 58, Candeias, 45029-094 Vitória da Conquista, BA, Brasil.
authors.forename: Robson A A DA
authors.initials: RA
authors.lastname: Silva
mesh_terms: D000818:Animals; D001938:Brazil / Q000453:epidemiology; D014355:Chagas Disease / Q000453:epidemiology / Q000469:parasitology* / Q000635:transmission; D002947:Cities / Q000453:epidemiology; D006801:Humans; D007303:Insect Vectors / Q000469:parasitology*; D014224:Triatoma / Q000469:parasitology*; D014349:Trypanosoma cruzi / Q000302:isolation & purification*