Risk factors for the presence of Aedes aegypti and Aedes albopictus in domestic water-holding containers in areas impacted by the Nam Theun 2 hydroelectric project, Laos

Autor(es): Hiscox Alexandra, Kaye Angela, Vongphayloth Khamsing, Banks Ian, Piffer Michele, Khammanithong Phasouk, Sananikhom Pany, Kaul Surinder, Hill Nigel, Lindsay Steven W, Brey Paul T


Resumo: We assessed risk factors for vectors of dengue - chikungunya viruses near a new hydroelectric project, Nam Theun 2, in Laos. Immature stages of Aedes aegypti were found only in sites within 40 km of the urban provincial capital, but Aedes albopictus was found throughout. Aedes aegypti pupae were most common in water storage jars (odds ratio [OR] = 4.72) - tires (OR = 2.99), - Ae. albopictus pupae were associated with tires in 2009 (OR = 10.87) - drums, tires, - jars in 2010 (drums OR = 3.05; tires OR = 3.45, jars OR = 6.59). Compared with water storage vessels, containers used for hygiene, cooking, - drinking were 80% less likely to harbor Ae. albopictus pupae in 2010 (OR = 0.20), - discarded waste was associated with a 3.64 increased odds of infestation. Vector control efforts should focus on source reduction of water storage containers, particularly concrete jars - tires.


Imprenta: The American Journal of Tropical Medicine and Hygiene, v. 88, n. 6, p. 1070-1078, 2013


Identificador do objeto digital: 10.4269/ajtmh.12-0623


Descritores: Chikungunya virus - Flaviviridae ; Chikungunya virus - Pathogenesis ; Chikungunya Virus - Virus ; Chikungunya virus - Dengue ; Chikungunya virus - Public health


Data de publicação: 2013