title: Density of Aedes aegypti and Aedes albopictus and its association with number of residents and meteorological variables in the home environment of dengue endemic area, São Paulo, Brazil.
abstract: BACKGROUND
  Measure the populations of Ae. aegypti and Ae. albopictus adults according to sex and location inside or outside the residence, estimate Ae. aegypti female density per house and per resident, and test the association with abiotic factors.
  
  
  METHODS
  Adult mosquitoes were collected monthly with a hand net and portable electric catcher in the peridomiciliary and intradomiciliary premises of residences in an urban area with ongoing dengue transmission in the municipality of São Sebastião, Brazil, from February 2011 to February 2012.
  
  
  RESULTS
  Of the 1,320 specimens collected, 1,311 were Ae. aegypti, and nine were Ae. albopictus. A total of 653 male and 658 female of Ae. aegypti were recorded, of which 80% were intradomiciliary. The mean density of Ae. aegypti adult females was 1.60 females/house and 0.42 females/resident. There was an association between the number of females and the number of residents in both intradomiciliary and peridomiciliary premises (r(2) = 0.92; p < 0.001 and r(2) = 0.68; p < 0.001, respectively). There was an association between the number of females and the mean and total rainfall; the correlation was better in peridomiciliary premises (p = 0.00; r(2) = 77%) than intradomiciliary premises in both cases (p = 0.01; r(2) = 48%). Minimum temperature was associated in both environments, exhibiting the same coefficient of determination (p = 0.02; r(2) = 40%). The low frequency of Ae. albopictus (seven females and two males) did not allow for detailed evaluation.
  
  
  CONCLUSIONS
  Ae. aegypti is well established within the urban area studied, and the frequency of isolation is higher inside the houses. Female density was directly proportional to the number of residents in the houses. Our data show that human population density positively affects the number of Ae. aegypti females within the residence. Meteorological variables also affected mosquito populations. These data indicate a high probability of human-vector contact, increasing the possible transmission and spread of the DEN virus. Entomological indicators of adult females revealed important information complimenting what was obtained with traditional Stegomyia indices. This information should be a part of an interconnected data set for evaluating and controlling the vector.
authors.affiliation: Superintendência de Controle de Endemias, Praça Coronel Vitoriano, 23 Jardim Santa Clara, Centro, Taubaté, São Paulo, CEP 12020-020, Brasil. mamrod@gmail.com.
authors.forename: Marianni de Moura
authors.initials: Mde M
authors.lastname: Rodrigues
authors.affiliation: Superintendência de Controle de Endemias, Praça Coronel Vitoriano, 23 Jardim Santa Clara, Centro, Taubaté, São Paulo, CEP 12020-020, Brasil. giselammarques@uol.com.br.
authors.forename: Gisela Rita Alvarenga Monteiro
authors.initials: GR
authors.lastname: Marques
authors.affiliation: Superintendência de Controle de Endemias, Praça Coronel Vitoriano, 23 Jardim Santa Clara, Centro, Taubaté, São Paulo, CEP 12020-020, Brasil. ligia-serpa@hotmail.com.
authors.forename: Lígia Leandro Nunes
authors.initials: LL
authors.lastname: Serpa
authors.affiliation: Superintendência de Controle de Endemias, Praça Coronel Vitoriano, 23 Jardim Santa Clara, Centro, Taubaté, São Paulo, CEP 12020-020, Brasil. maryleneb@uol.com.br.
authors.forename: Marylene de Brito
authors.initials: Mde B
authors.lastname: Arduino
authors.affiliation: Universidade de Taubaté, Avenida Tiradentes, 500, Bom Conselho, Taubaté, São Paulo, CEP 12030-180, Brasil. jcvoltol@uol.com.br.
authors.forename: Júlio Cesar
authors.initials: JC
authors.lastname: Voltolini
authors.affiliation: Superintendência de Controle de Endemias, Rua Paula Souza, 166, Luz, São Paulo, São Paulo, CEP 01027-000, Brasil. gersonlbarbosa@gmail.com.
authors.forename: Gerson Laurindo
authors.initials: GL
authors.lastname: Barbosa
authors.affiliation: Superintendência de Controle de Endemias, Rua São Carlos, 546, Campinas, São Paulo, CEP 13035-420, Brasil. valmir@mpc.com.br.
authors.forename: Valmir Roberto
authors.initials: VR
authors.lastname: Andrade
authors.affiliation: Superintendência de Controle de Endemias, Rua São Carlos, 546, Campinas, São Paulo, CEP 13035-420, Brasil. vlima@mpc.com.br.
authors.forename: Virgília Luna Castor
authors.initials: VL
authors.lastname: de Lima
mesh_terms: D000328:Adult; D000330:Aedes / Q000254:growth & development* / Q000821:virology; D000818:Animals; D001938:Brazil / Q000453:epidemiology; D002947:Cities; D003715:Dengue / Q000453:epidemiology* / Q000635:transmission; D003716:Dengue Virus / Q000502:physiology*; D019353:Endemic Diseases; D004777:Environment; D005260:Female; D006798:Housing; D006801:Humans; D007303:Insect Vectors / Q000254:growth & development* / Q000821:virology; D008297:Male; D009032:Mosquito Control; D011156:Population Density