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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Exploring the utility of social-ecological and entomological risk factors for dengue infection as surveillance indicators in the dengue hyper-endemic city of Machala, Ecuador
PLoS Neglected Tropical Diseases, Volume 15, No. 3, Article e0009257, Year 2021
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Description
The management of mosquito-borne diseases is a challenge in southern coastal Ecuador, where dengue is hyper-endemic and co-circulates with other arboviral diseases. Prior work in the region has explored social-ecological factors, dengue case data, and entomological indices. In this study, we bring together entomological and epidemiological data to describe links between social-ecological factors associated with risk of dengue transmission at the household level in Machala, Ecuador. Households surveys were conducted from 2014– 2017 to assess the presence of adult Aedes aegypti (collected via aspiration) and to enu-merate housing conditions, demographics, and mosquito prevention behaviors. Household-level dengue infection status was determined by laboratory diagnostics in 2014–2015. Bivariate analyses and multivariate logistic regression models were used to identify social-ecological variables associated with household presence of female Ae. aegypti and household dengue infection status, respectively. Aedes aegypti presence was associated with interruptions in water service and weekly trash collection, and household air conditioning was protective against mosquito presence. Presence of female Ae. aegypti was not associated with household dengue infections. We identified shaded patios and head of household employment status as risk factors for household-level dengue infection, while window screening in good condition was identified as protective against dengue infection. These findings add to our understanding of the systems of mosquito-borne disease transmission in Machala, and in the larger region of southern Ecuador, aiding in the development of improved vector surveillance efforts, and targeted interventions. © 2021 Lippi et al.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC8011822/bin/pntd.0009257.s001.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC8011822/bin/pntd.0009257.s002.xlsx
Authors & Co-Authors
Lippi, Catherine A.
United States, Gainesville
University of Florida
Stewart-Ibarra, Anna M.
United States, Albany
State University of new York System
Endy, Timothy P.
United States, Albany
State University of new York System
United States, Syracuse
Suny Upstate Medical University
Abbott, Mark A.
United States, Albany
State University of new York System
United States, Syracuse
Suny Upstate Medical University
Cueva-Aponte, Cinthya
United States, Albany
State University of new York System
Heras, Froilán
United States, Albany
State University of new York System
Polhemus, Mark E.
United States, Washington
Coalition for Epidemic Preparedness Innovations
Beltrán Ayala, Efraín Felix
Ecuador, Machala
Universidad Técnica de Machala
Ryan, Sadie J.
United States, Gainesville
University of Florida
Statistics
Citations: 5
Authors: 9
Affiliations: 5
Identifiers
Doi:
10.1371/journal.pntd.0009257
ISSN:
19352727
Research Areas
Environmental
Infectious Diseases
Study Design
Cross Sectional Study
Participants Gender
Female