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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Household and climate factors influence Aedes aegypti presence in the arid city of Huaquillas, Ecuador
PLoS Neglected Tropical Diseases, Volume 15, No. 11, Article e0009931, Year 2021
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Description
Arboviruses transmitted by Aedes aegypti (e.g., dengue, chikungunya, Zika) are of major public health concern on the arid coastal border of Ecuador and Peru. This high transit border is a critical disease surveillance site due to human movement-associated risk of transmission. Local level studies are thus integral to capturing the dynamics and distribution of vector populations and social-ecological drivers of risk, to inform targeted public health interventions. Our study examines factors associated with household-level Ae. aegypti presence in Huaquillas, Ecuador, while accounting for spatial and temporal effects. From January to May of 2017, adult mosquitoes were collected from a cohort of households (n = 63) in clusters (n = 10), across the city of Huaquillas, using aspirator backpacks. Household surveys describing housing conditions, demographics, economics, travel, disease prevention, and city services were conducted by local enumerators. This study was conducted during the normal arbovirus transmission season (January—May), but during an exceptionally dry year. Household level Ae. aegypti presence peaked in February, and counts were highest in weeks with high temperatures and a week after increased rainfall. Univariate analyses with proportional odds logistic regression were used to explore household social-ecological variables and female Ae. aegypti presence. We found that homes were more likely to have Ae. aegypti when households had interruptions in piped water service. Ae. aegypti presence was less likely in households with septic systems. Based on our findings, infrastructure access and seasonal climate are important considerations for vector control in this city, and even in dry years, the arid environment of Huaquillas supports Ae. aegypti breeding habitat. © 2021 Martin et al.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC8651121/bin/pntd.0009931.s001.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC8651121/bin/pntd.0009931.s002.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC8651121/bin/pntd.0009931.s003.tif
Authors & Co-Authors
Lippi, Catherine A.
United States, Gainesville
University of Florida
Stewart-Ibarra, Anna M.
United States, Syracuse
Suny Upstate Medical University
Uruguay, Montevideo
Interamerican Institute for Global Change Research Iai
Beltrán Ayala, Efraín Felix
Ecuador, Machala
Universidad Técnica de Machala
Mordecai, Erin A.
United States, Palo Alto
Stanford University
Sippy, Rachel J.
United States, Gainesville
University of Florida
United States, Syracuse
Suny Upstate Medical University
Heras, Froilán
United States, Syracuse
Suny Upstate Medical University
Blackburn, Jason Kenna
United States, Gainesville
University of Florida
Ryan, Sadie J.
United States, Gainesville
University of Florida
Statistics
Citations: 7
Authors: 8
Affiliations: 5
Identifiers
Doi:
10.1371/journal.pntd.0009931
ISSN:
19352727
Research Areas
Environmental
Health System And Policy
Infectious Diseases
Study Design
Cross Sectional Study
Cohort Study
Participants Gender
Female