Household and climate factors influence Aedes aegypti presence in the arid city of Huaquillas, Ecuador
| Autor: | Efraín Beltrán Ayala, James L. Martin, Erin A. Mordecai, Rachel Sippy, Catherine A. Lippi, Jason K. Blackburn, Froilán Heras, Anna M. Stewart-Ibarra, Sadie J. Ryan |
|---|---|
| Přispěvatelé: | University of St Andrews. Statistics |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Atmospheric Science
Mosquito Control Aedes/physiology Epidemiology Climate RC955-962 Distribution (economics) E-DAS Disease Vectors Mosquitoes Geographical locations law.invention Medical Conditions 0302 clinical medicine Aedes law RA0421 Natural Resources Arctic medicine. Tropical medicine RA0421 Public health. Hygiene. Preventive Medicine Medicine and Health Sciences 030212 general & internal medicine 2. Zero hunger Family Characteristics Disease surveillance Mosquito vectors/physiology biology Temperature Eukaryota QR Microbiology Mosquito control SDG 11 - Sustainable Cities and Communities 3. Good health Insects Infectious Diseases Transmission (mechanics) Geography Water Resources Family characteristics Engineering and Technology Female Ecuador Seasons Public aspects of medicine RA1-1270 Research Article medicine.medical_specialty Arthropoda Infectious Disease Control 030231 tropical medicine Mosquito Vectors Aedes aegypti Aedes Aegypti Civil Engineering 03 medical and health sciences Meteorology SDG 3 - Good Health and Well-being Environmental health medicine Animals Humans Urban Infrastructure Cities Ecosystem MCC business.industry Public health Ecology and Environmental Sciences fungi Organisms Public Health Environmental and Occupational Health Biology and Life Sciences Animal distribution South America 15. Life on land biology.organism_classification Invertebrates Arid Insect Vectors QR Water resources Species Interactions 13. Climate action Medical Risk Factors Vector (epidemiology) Earth Sciences People and places business Animal Distribution Zoology Entomology |
| Zdroj: | PLoS Neglected Tropical Diseases, Vol 15, Iss 11, p e0009931 (2021) PLoS Neglected Tropical Diseases |
| Popis: | 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. Author summary Mosquito transmitted infectious diseases are a growing concern around the world. The yellow fever mosquito (Aedes aegypti) has been responsible for recent major outbreaks of disease, including dengue fever and Zika. This mosquito prefers to bite humans and lay its eggs in artificial containers such as water tanks and planters. This makes Ae. aegypti well suited to become established in growing urban areas. Controlling these mosquitoes has been an important way to reduce the risk of disease transmission. Studies that are undertaken to understand local factors that contribute to the continued survival of the mosquito can be used to inform control practices. We conducted a study in the largest Ecuadorian city on the border of Peru where we collected adult mosquitoes from houses and surveyed household members about their behaviors, perceptions, and housing infrastructure associated with the mosquito vector. Mosquitoes were most numerous in weeks with high temperatures and a week after increased rainfall. We found that houses that had unreliable water service were more likely have mosquitoes present, while houses that used septic systems were less likely to have mosquitoes present. |
| Databáze: | OpenAIRE |
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