1921
Volume 96, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Abstract

A total of 2,431 were collected from 39 populations of Paraíba (PB) and Rio Grande do Norte (RN) states, Brazil. In PB, infection was not detected in either peridomestic or domestic vector populations. In contrast, in RN, was detected with high parasite prevalence in these ecotopes (30.7–40.0%). Moreover, peridomicile insect population densities were more than double the average densities of all other settings evaluated (19.17 versus < 8.94 triatomine/man-hour). Genotyped parasites evidenced a mix of lineages circulating in both peridomestic and sylvatic populations. Although vector control efforts have dramatically decreased Chagas disease transmission to humans, recent outbreaks have been detected in four municipalities of RN state. Our results clearly evidence a worrisome proximity between infected vectors and humans in RN. Indeed, finding of infected inside homes is routinely recorded by local vector control surveillance staff around the outbreak area, challenging the current and conventional view that vector transmissions are controlled in northeastern Brazil. This scenario calls for strengthening vector control surveillance and interventions to prevent further Chagas transmission, especially in RN State.

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2017-06-07
2018-12-11
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References

  1. Silveira AC, Feitosa VR, Borges R, , 1984. Distribuição de triatomíneos capturados no ambiente domiciliar, no período de 1975/83, Brasil. Rev Bras Malariol Doencas Trop 36: 15312.
  2. Silveira AC, Vinhaes MC, , 1999. Elimination of vector-borne transmission of Chagas disease. Mem Inst Oswaldo Cruz 94: 405411.[Crossref]
  3. Camargo ME, da Silva GR, de Castilho EA, Silveira AC, , 1984. Inquérito sorológico da prevalência de infecção chagásica no Brasil, 1975/1980. Rev Inst Med Trop Sao Paulo 26: 192204.[Crossref]
  4. Lucena DT, , 1970. Estudo da doença de Chagas no Nordeste do Brasil. Rev Bras Malariol Doencas Trop 22: 3173.
  5. Costa J, Almeida CE, Dotson EM, Lins A, Vinhaes M, Silveira AC, Beard CB, , 2003. The epidemiologic importance of Triatoma brasiliensis as a Chagas disease vector in Brazil: a revision of domiciliary captures during 1993–1999. Mem Inst Oswaldo Cruz 98: 443449.[Crossref]
  6. Silveira AC, Vinhaes MC, Lira E, Araújo E, , 2001. O controle de Triatoma brasiliensis e Triatoma pseudomaculata. I: estudo do tempo de reposição das condições de transmissão em áreas submetidas a tratamento químico domiciliar, e de variáveis ambientais relacionadas. Brasília, Brasil: Organização Panamericana de Saúde (OPAS), 86.
  7. Silveira AC, Vinhaes MC, Lira E, Araújo E, , 2001. O Controle de Triatoma brasiliensis e Triatoma pseudomaculata. II: avaliação do controle físico, pela melhoria habitacional, e caracterização do ambiente peridomiciliar mais e menos favorável à persistência da infestação ou reinfestação por Triatoma brasiliensis e Triatoma pseudomaculata . Brasília, Brasil: Organização Panamericana de Saúde (OPAS), 62.
  8. Costa J, de Almeida JR, Britto C, Duarte R, Marchon-Silva V, Pacheco R da S, , 1998. Ecotopes, natural infection and trophic resources of Triatoma brasiliensis (Hemiptera, Reduviidae, Triatominae). Mem Inst Oswaldo Cruz 93: 713.[Crossref]
  9. Costa J, Lorenzo M, , 2009. Biology, diversity and strategies for the monitoring and control of triatomines: Chagas disease vectors. Mem Inst Oswaldo Cruz 1: 4651.[Crossref]
  10. Almeida CE, Faucher L, Lavina M, Costa J, Harry M, , 2016. Molecular individual-based approach on Triatoma brasiliensis: inferences on triatomine foci, Trypanosoma cruzi natural infection prevalence, parasite diversity and feeding sources. PLoS Negl Trop Dis 10: e0004447.[Crossref]
  11. Almeida CE, Pacheco RS, Haag K, Dupas S, Dotson EM, Costa J, , 2008. Inferring from the Cyt B gene the Triatoma brasiliensis Neiva, 1911 (Hemiptera: Reduviidae: Triatominae) genetic structure and domiciliary infestation in the state of Paraíba, Brazil. Am J Trop Med Hyg 78: 791802.
  12. Costa J, Dornak LL, Almeida CE, Peterson AT, , 2014. Distributional potential of the Triatoma brasiliensis species complex at present and under scenarios of future climate conditions. Parasit Vectors 7: 238.[Crossref]
  13. Almeida CE, Folly-Ramos E, Peterson AT, Lima-Neiva V, Gumiel M, Duarte R, Lima MM, Locks M, Beltrao M, Costa J, , 2009. Could the bug Triatoma sherlocki be vectoring Chagas disease in small mining communities in Bahia, Brazil? Med Vet Entomol 23: 410417.[Crossref]
  14. Lent H, Wygodzinsky PW, , 1979. Revision of the Triatominae (Hemiptera, Reduviidae), and their significance as vectors of Chagas' disease. Bulletin of the AMNH 163: 123520.
  15. Costa J, Correia NC, Neiva VL, Goncalves TC, Felix M, , 2013. Revalidation and redescription of Triatoma brasiliensis macromelasoma Galvao, 1956 and an identification key for the Triatoma brasiliensis complex (Hemiptera: Reduviidae: Triatominae). Mem Inst Oswaldo Cruz 108: 785789.[Crossref]
  16. Souto RP, Fernandes O, Macedo AM, Campbell DA, Zingales B, , 1996. DNA markers define two major phylogenetic lineages of Trypanosoma cruzi . Mol Biochem Parasitol 83: 141152.[Crossref]
  17. SUS/SSP Secretaria de Estado da Saúde Pública do Rio Grande do Norte (SESAP/RN), 2016. Investigação Aponta Surto de Doença de Chagas em Municípios do RN em 2015. Available at: http://www.saude.rn.gov.br/Conteudo.asp?TRAN=ITEM&TARG=111912&ACT=null&PAGE=null&PARM=null&LBL=NOT%C3%83+CIA. Accessed May 16, 2016.
  18. Sarquis O, Sposina R, de Oliveira TG, Mac Cord JR, Cabello PH, Borges-Pereira J, Lima MM, , 2006. Aspects of peridomiciliary ecotopes in rural areas of northeastern Brazil associated to triatomine (Hemiptera, Reduviidae) infestation, vectors of Chagas disease. Mem Inst Oswaldo Cruz 101: 143147.[Crossref]
  19. Lima MM, Sarquis O, de Oliveira TG, Gomes TF, Coutinho C, Daflon-Teixeira NF, Toma HK, Britto C, Teixeira BR, D'Andrea PS, Jansen AM, Boia MN, Carvalho-Costa FA, , 2012. Investigation of Chagas disease in four periurban areas in northeastern Brazil: epidemiologic survey in man, vectors, non-human hosts and reservoirs. Trans R Soc Trop Med Hyg 106: 143149.[Crossref]
  20. Coutinho CF, Souza-Santos R, Lima MM, , 2012. Combining geospatial analysis and exploratory study of triatomine ecology to evaluate the risk of Chagas disease in a rural locality. Acta Trop 121: 3033.[Crossref]
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Supplementary Data

Supplemental Files

  • Received : 20 Oct 2016
  • Accepted : 30 Dec 2016

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