title: Household risk factors associated to infestation of Triatoma dimidiata, the Chagas disease vector in Central Region of Veracruz, Mexico.
abstract: OBJECTIVE
  To evaluate risk factors facilitating the colonization of dwellings by Triatoma dimidiata in the central region of the state of Veracruz.
  
  
  METHODS
  We applied socioeconomic questionnaires and entomologic surveys in three localities (Chavarrillo, Soyacuautla and Arroyo Agrio) in central Veracruz involving 115 households.
  
  
  RESULTS
  We found that the main risk factors were the predominance of unplastered walls and particularly those made of light weight aggregate concrete blocks and wood. At Chavarrillo, houses usually have unplastered walls, whereas in Soyocuautla walls are commonly manufactured with wood. In Arroyo Agrio, the phenomenon was seasonal, and bugs were commonly found in the dry season, particularly in relatively new houses, less than 20 years old.
  
  
  CONCLUSIONS
  These results help to improve the surveillance capacity for this vector and the control strategies to reduce the transmission of Chagas disease in the state of Veracruz and other sites where this species is present.
authors.affiliation: Red de Ambiente y Sustentabilidad, Instituto de Ecología, Xalapa, Veracruz, México.
authors.forename: César A
authors.initials: CA
authors.lastname: Sandoval-Ruiz
authors.affiliation: Red de Biología Evolutiva, Instituto de Ecología, Xalapa, Veracruz, México.
authors.forename: Roger
authors.initials: R
authors.lastname: Guevara
authors.affiliation: Red de Ambiente y Sustentabilidad, Instituto de Ecología, Xalapa, Veracruz, México.
authors.forename: Sergio
authors.initials: S
authors.lastname: Ibáñez-Bernal
mesh_terms: D000818:Animals; D014355:Chagas Disease / Q000517:prevention & control / Q000635:transmission; D005191:Family Characteristics; D006801:Humans; D007300:Insect Control; D008800:Mexico; D018570:Risk Assessment; D012307:Risk Factors; D014224:Triatoma