Risks of dengue secondary infective biting associated with Aedes aegypti in home environments in Monterrey, Mexico
Autor(es): Ramirez-Jimenez, Rocio; Zarate-Nahon, Ewry Arvid; Alvarado-Moreno, Marcela Selene; Sanchez-Casas, Rosa Maria; Laguna-Aguilar, Maricela; Sanchez-Rodriguez, Olga Sarai; Torres-Zapata, Raul; Rivas-Estilla, Ana Maria; Ramos-Jimenez, Javier; Garza, Carlos Medina de la; Villareal-Perez, Jesus Zacarias; Ibarra-Juarez, Luis; Dominguez-Galera, Marco; Mis-Avila, Pedro; Fernandez-Salas, Ildefonso
Resumo: Secondary dengue virus infections are a major risk for developing dengue hemorrhagic fever. Recent exposure to infectious bites of Aedes aegypti (L.) females in previously diagnosed dengue cases fulfills the epidemiological model of dengue hemorrhagic fever. A study was comprised of 357 (89.2%) dengue and 43 (10.8%) dengue hemorrhagic fever cases confirmed by laboratory tests and clinical manifestations. An entomological survey was done in homes and backyards. Concurrently, a questionnaire was used to assess the impact of healthpromotion campaigns through knowledge of the vector and its epidemiological role. Seventy-six (28.4%) of the 268 (67.0%) total wet or dry oviposition sites were positive for the presence of larvae or pupae, while adult Ae. aegypti were found in 32 (8.0%). One hundred thirty-two (33%) householders who formerly had dengue fever or dengue hemorrhagic fever had knowledge of either larval or adult dengue vector stages. According to gender distribution, 145 (36.2%) and 14 (3.5%) of the males confirmed with cases of dengue and dengue hemorrhagic fever lived in houses with 17.9 and 2% of the Ae. aegypti larval and pupal habitats. Houses with females who had dengue and dengue hemorrhagic fever were 212 (53%) and 29 (7.3%), with containers with immature Ae. aegypti in 19.4 and 7%, respectively. Lack of sustainability of government-targeted health education campaigns is the major problem for involving communities in prevention and control of dengue.
Palavras-Chave: Resource management; Pest control; Risks; Disease transmission; Public health; Dengue hemorrhagic fever; Dengue; Vectors; Infection; Habitat; Oviposition; Containers; Laboratory testing; Larvae; Sustainability; Education; Prevention; Gender; Residential areas; Dengue virus; Aedes aegypti
Imprenta: Southwestern Entomologist, v. 38, n. 1, p. 99-108, 2013.
Descritores: Aedes aegypti - Infectious diseases ; Aedes aegypti - Viral infections ; Aedes aegypti - Virus ; Aedes aegypti - Transmission ; Aedes aegypti - Dengue ; Aedes aegypti - Epidemiology ; Aedes aegypti - Public health
Data de publicação: 2013
