Assessing dengue vector breeding in diverse environments for targeted interventions: Case studies from Colombia and Nepal.
- 1Centre of Planetary Health, University of Freiburg, Freiburg im Breisgau, 79098, Germany.
- 2Universidad Popular del Cesar, Valledupar, Colombia.
- 3Central Department of Microbiology, Tribhuvan University, Kirtipur, Kathmandu, Nepal.
Abstract
Dengue and other Aedes-borne diseases are increasing globally, with vector control being the primary prevention strategy in the absence of an effective vaccine. Because mosquitoes breed in domestic water containers, identifying the most productive container types is essential for targeted interventions. This study compared pupal productivity of Aedes spp. and productive container types in two settings in Colombia and Nepal with distinct environmental, epidemiological, and water storage characteristics. A pupal/demographic survey was conducted in Valledupar, Colombia, and Triyuga Municipality, Nepal, including 300 and 121 households, respectively. Pupal counts were used as a proxy for adult mosquito production. In Colombia, 16 of 506 containers were productive, with large water storage containers accounting for over 90% of pupae. In Nepal, 34 of 396 containers were productive, with containers such as barrels and flower vases contributing most pupae. In both locations, pupal production was highly clustered in a small number of containers. These findings show that the most productive breeding sites differ between places, with large containers dominating in Colombia and smaller containers in Nepal. Targeted vector control strategies should therefore, focus on the specific container types responsible for most pupal production in each context. Context-specific interventions guided by pupal/demographic surveys are essential for efficient dengue control.
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BibTeX
@article{barahona2026assessing,
title = {{Assessing dengue vector breeding in diverse environments for targeted interventions: Case studies from Colombia and Nepal.}},
author = {Emerson Barahona and Dorinda Nelson-Cofie and Axel Kroeger and Kathleen Chavarría and Niseth Vence and Megha Raj Banjara},
journal = {Current research in parasitology \& vector-borne diseases},
year = {2026},
month = oct,
doi = {10.1016/j.crpvbd.2026.100449},
url = {https://europepmc.org/article/MED/42959520},
note = {CC BY},
}
RIS
TY - JOUR
TI - Assessing dengue vector breeding in diverse environments for targeted interventions: Case studies from Colombia and Nepal.
AU - Emerson Barahona
AU - Dorinda Nelson-Cofie
AU - Axel Kroeger
AU - Kathleen Chavarría
AU - Niseth Vence
AU - Megha Raj Banjara
PY - 2026
DA - 2026/10/15
JO - Current research in parasitology & vector-borne diseases
DO - 10.1016/j.crpvbd.2026.100449
UR - https://europepmc.org/article/MED/42959520
AB - Dengue and other Aedes-borne diseases are increasing globally, with vector control being the primary prevention strategy in the absence of an effective vaccine. Because mosquitoes breed in domestic water containers, identifying the most productive container types is essential for targeted interventions. This study compared pupal productivity of Aedes spp. and productive container types in two settings in Colombia and Nepal with distinct environmental, epidemiological, and water storage characteristics. A pupal/demographic survey was conducted in Valledupar, Colombia, and Triyuga Municipality, Nepal, including 300 and 121 households, respectively. Pupal counts were used as a proxy for adult mosquito production. In Colombia, 16 of 506 containers were productive, with large water storage containers accounting for over 90% of pupae. In Nepal, 34 of 396 containers were productive, with containers such as barrels and flower vases contributing most pupae. In both locations, pupal production was highly clustered in a small number of containers. These findings show that the most productive breeding sites differ between places, with large containers dominating in Colombia and smaller containers in Nepal. Targeted vector control strategies should therefore, focus on the specific container types responsible for most pupal production in each context. Context-specific interventions guided by pupal/demographic surveys are essential for efficient dengue control.
SN - 2667-114X
ER -