Environmental and non-environmental determinants of plasmodium transmission in the Amazonian urban landscape and its clinical consequences: a population-based study in Mâncio Lima, Acre

Authors

  • Rayanne Alves de Arruda Universidade Federal do Acre
  • Felipe Monteiro de Araújo Universidade Federal do Acre
  • Andreus Roberto Schlosser Universidade Federal do Acre
  • Rudi Nogueira Universidade Federal do Acre
  • Maria Gabriela Silva Guimaraes Universidade Federal do Acre
  • Cassio Braga e Braga Universidade Federal do Acre
  • Antonio Camargo Martins Universidade Federal do Acre
  • Aline Ferreira da Silva Universidade Federal do Acre
  • Athaid David Escalante Cayotopa Universidade Federal do Acre
  • Wagner Werner Klein Universidade Federal do Acre
  • Mardelson Nery de Souza Universidade Federal do Acre
  • Breno Wilson Benevides Andrade Universidade Federal do Acre
  • Paula Rúbia Jornada Bastos Universidade Federal do Acre
  • Ana Caroline Santana dos Santos Universidade Federal do Acre
  • João Vitor Coelho Pacheco Universidade Federal do Acre
  • José Alcântara Filgueira- Júnior Universidade Federal do Acre
  • Alanderson Alves Ramalho Universidade Federal do Acre
  • Eder Ferreira de Arruda Universidade Federal do Acre
  • Saulo Augusto Silva Mantovani Universidade Federal do Acre
  • Thasciany Moraes Pereira Universidade Federal do Acre
  • Breno Matos Delfino Universidade Federal do Acre
  • Carlos Eugenio Cavasini Faculdade de Medicina de São José do Rio Preto
  • Rosely dos Santos Malafronte Instituto de Medicina Tropical de São Paulo
  • Izabel Cristina dos Reis Fundação Instituto Osvaldo Cruz - RJ
  • Nildimar Alves Honório Fundação Instituto Osvaldo Cruz - RJ
  • Cláudia Torres Codeço
  • Mônica da Silva-Nunes Universidade Federal do Acre

DOI:

https://doi.org/10.51723/ccs.v28i01.108

Abstract

This study evaluated the environmental changes of the urban landscape of a municipality with a high incidence of malaria in the Brazilian Amazon (Mâncio Lima, Acre) and its relation with the disease, in order to provide evidence that the transmission of Plasmodium is caused by the way humans interact with the environment. Three consecutive population studies were carried out between 2012 and 2013, with 1260 individuals, with plasmodium identification by microscopy and molecular techniques. Malaria cases were analyzed using a clinical questionnaire. The entomological study involved 8 cross-sectional surveys with collection of immature forms in 90 bodies of water, as well as spatial evaluation of these data. The results showed that the transmission of malaria in the area was largely due to the creation of fish tanks, which increased the immature productivity of Anopheles darlingi by around 10 times, and the great mobility of the population, which moves to areas of greater transmission (as riverside and rural area) and returns infected to the urban area. Cases of asymptomatic Plasmodium carriers have been identified, albeit in small numbers. Factors associated with absence of symptoms (asymptomatic infection) were the sex and time of the last malaria. In symptomatic patients, the frequency of symptoms was related to age, number of previous malaria and parasitemia. The geographic concentration of the cases was due in part to aggregate socioeconomic characteristics in space, together with environmental factors such as vector presence, since the infrequent use of mosquito nets was associated with a higher incidence of malaria.

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Published

2018-01-29

How to Cite

1.
Arruda RA de, Araújo FM de, Schlosser AR, Nogueira R, Guimaraes MGS, Braga CB e, Martins AC, da Silva AF, Cayotopa ADE, Klein WW, Souza MN de, Andrade BWB, Bastos PRJ, Santos ACS dos, Pacheco JVC, Filgueira- Júnior JA, Ramalho AA, Arruda EF de, Mantovani SAS, Pereira TM, Delfino BM, Cavasini CE, Malafronte R dos S, Reis IC dos, Honório NA, Codeço CT, Silva-Nunes M da. Environmental and non-environmental determinants of plasmodium transmission in the Amazonian urban landscape and its clinical consequences: a population-based study in Mâncio Lima, Acre. Com. Ciências Saúde [Internet]. 2018 Jan. 29 [cited 2024 May 18];28(01):12-2. Available from: https://revistaccs.escs.edu.br/index.php/comunicacaoemcienciasdasaude/article/view/108

Issue

Section

Saúde Coletiva