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Modeling Culicoides paraensis distribution and implications for Oropouche virus transmission in Brazil
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Modeling Culicoides paraensis distribution and implications for Oropouche virus transmission in Brazil
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Journal Article
Modeling Culicoides paraensis distribution and implications for Oropouche virus transmission in Brazil
2025
Overview
Oropouche virus (OROV) is mainly transmitted to humans by
Culicoides paraensis
, a biting midge widely distributed across the Americas. In this study, we modeled the potential distribution of
C. paraensis
in Brazil using environmental variables and found that temperature-related factors, particularly minimum temperature and annual temperature range, were the strongest predictors of its occurrence. Comparison of the predicted distribution with confirmed autochthonous OROV cases revealed several areas of mismatch, suggesting either underreporting of
C. paraensis
or the involvement of additional vector species in transmission. These findings highlight the need to integrate
C. paraensis
into Brazil’s arbovirus surveillance systems and to strengthen entomological monitoring with the support of remote sensing, climate data, and ecological research to better anticipate and mitigate future transmission risks.
Graphical Abstract
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
/ Animals
/ Biomedical and Life Sciences
/ Bunyaviridae Infections - epidemiology
/ Bunyaviridae Infections - transmission
/ Bunyaviridae Infections - virology
/ Ceratopogonidae - physiology
/ Humans
/ Orthobunyavirus - isolation & purification
/ Orthobunyavirus - physiology
/ Veterinary Medicine/Veterinary Science
/ Virology
