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Factors associated with Chikungunya infection in a cohort of women aged 15-39 y in Fortaleza, Brazil.

Authors
  • Correia, Francisco1
  • Kerr, Ligia1
  • Frota, Cristiane1
  • Barreto, Ivana2
  • Almeida, Rosa1
  • Pamplona, Luciano1
  • Araújo, Larissa1
  • Myiajima, Fábio2
  • Lima, Shirlene1, 3
  • Araújo, Fernanda3
  • Simões, Leda3
  • Júnior, Francisco1
  • Martins, Adriano1
  • Dias, Livia1
  • Alcântara, Ilka1
  • Silva, Ana1
  • Sanhueza, Carlos1
  • Ribeiro, Marco1
  • Teixeira, Maria2
  • Meyer, Anya2
  • And 6 more
  • 1 Federal University of Ceará, 1608 Prof. Costa Mendes Street, Didactics Building, 5th floor, Rodolfo Teófilo, Fortaleza 60430-160, Brazil. , (Brazil)
  • 2 Laboratório de Saúde Pública do Estado do Ceará (LACEN), 2405 Barão de Studart Avenue, Dionísio Torres, Fortaleza 60120-002, Brazil. , (Brazil)
  • 3 Oswaldo Cruz Foundation (Fiocruz), Branch Ceara, Eusebio 61760-000, Brazil. , (Brazil)
  • 4 Tulane School of Public Health and Tropical Medicine, 6823 St Charles Ave, New Orleans, LA 70118, USA.
Type
Published Article
Journal
Transactions of the Royal Society of Tropical Medicine and Hygiene
Publisher
Oxford University Press
Publication Date
Sep 03, 2021
Volume
115
Issue
9
Pages
1070–1079
Identifiers
DOI: 10.1093/trstmh/traa182
PMID: 33460441
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Outbreaks of Chikungunya virus (CHIKV) occurred in Brazil during 2015-2017. Fortaleza was the city that reported the most cases. The first round of a cohort study was conducted among women aged 15-39 y in Fortaleza, Brazil, in 2018 (Zika in Fortaleza). We collected sera to detect CHIKV IgG and IgM antibodies. Factors for CHIKV infection were identified using a Poisson regression model. We evaluated 1466 serum samples and 13.8% and 37.2% of women were found positive for CHIKV IgM and IgG antibodies, respectively. Living with more than four others in the same house and having an abandoned house nearby were associated with CHIKV infection. Being currently pregnant was associated with a decreased probability of CHIKV infection, which was also associated with pregnant women reporting using more repellent, both inside and outside the house, than non-pregnant women. Crowding in households and abandoned houses nearby can increase potential transmission. Policies providing better living conditions and regulation of abandoned sites and buildings are necessary to control the mosquito population. Programmes providing repellant at low or no cost to pregnant women should be implemented in the neighbourhoods where arbovirus infections are endemic. © The Author(s) 2021. Published by Oxford University Presson behalf of Royal Society of Tropical Medicine and Hygiene.

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