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 Federal University of Acre image/svg+xml
  • Felipe Monteiro de Araújo Federal University of Acre image/svg+xml
  • Andreus Roberto Schlosser Federal University of Acre image/svg+xml
  • Rudi Nogueira Federal University of Acre image/svg+xml
  • Maria Gabriela Silva Guimaraes Federal University of Acre image/svg+xml
  • Cassio Braga e Braga Federal University of Acre image/svg+xml
  • Antonio Camargo Martins Federal University of Acre image/svg+xml
  • Aline Ferreira da Silva Federal University of Acre image/svg+xml
  • Athaid David Escalante Cayotopa Federal University of Acre image/svg+xml
  • Wagner Werner Klein Federal University of Acre image/svg+xml
  • Mardelson Nery de Souza Federal University of Acre image/svg+xml
  • Breno Wilson Benevides Andrade Federal University of Acre image/svg+xml
  • Paula Rúbia Jornada Bastos Federal University of Acre image/svg+xml
  • Ana Caroline Santana dos Santos Federal University of Acre image/svg+xml
  • João Vitor Coelho Pacheco Federal University of Acre image/svg+xml
  • José Alcântara Filgueira- Júnior Federal University of Acre image/svg+xml
  • Alanderson Alves Ramalho Federal University of Acre image/svg+xml
  • Eder Ferreira de Arruda Federal University of Acre image/svg+xml
  • Saulo Augusto Silva Mantovani Federal University of Acre image/svg+xml
  • Thasciany Moraes Pereira Federal University of Acre image/svg+xml
  • Breno Matos Delfino Federal University of Acre image/svg+xml
  • Carlos Eugenio Cavasini Faculty of Medicine of São José do Rio Preto image/svg+xml
  • 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 Federal University of Acre image/svg+xml

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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References

Published

2018-01-29

Issue

Section

Saúde Coletiva

How to Cite

1.
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 2026 Feb. 11];28(01):12-2. Available from: https://revistaccs.espdf.fepecs.edu.br/index.php/comunicacaoemcienciasdasaude/article/view/108