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

2020; Oxford University Press; Volume: 115; Issue: 9 Linguagem: Inglês

10.1093/trstmh/traa182

1878-3503

Francisco Gustavo Silveira Correia, Lígia Regina Franco Sansigolo Kerr, Cristiane Cunha Frota, Ivana Cristina de Holanda Cunha Barreto, Rosa Lívia Freitas de Almeida, Luciano Pamplona, Larissa Fortunato Araújo, Fábio Myiajima, Shirlene Telmos Silva de Lima, Fernanda Montenegro de Carvalho Araújo, Leda Simões, Francisco Alberto Moraes Viana Júnior, Adriano Ferreira Martins, Livia Dias, Ilka Alcântara, Ana Silva, Carlos Sanhueza-Sanzana, Marco Túlio Aguiar Mourão Ribeiro, Maria Glória Teixeira, Anya Meyer, José Valter Joaquim Silva Júnior, Lucas da Rosa Vasconcelos, Paulo Sousa, Susy Pereira Saraiva, Dawn M. Wesson, Carl Kendall,

Energy and Environment Impacts

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.