Spatial and temporal distribution of Culex and Aedes mosquitoes in Ghana
Yaw Akuamoah-Boateng, Christopher Mfum Owusu-Asenso, Anisa Abdulai, Abdul Rahim Mohammed Sabtiu, Isaac Kwame Sraku, Sebastian Kwo Egyin Mensah, Faustina Adobea Owusu, Abena Ahema Ebuako, Godfred Amoateng, Bright Churchill Obeng, Richard Tettey Doe, Emmanuel Nana Boadu
TL;DR
This study tracks the spread of Culex and Aedes mosquitoes in Ghana from 2017 to 2025, revealing their outdoor dominance and the appearance of invasive species.
Contribution
The study provides the first detailed spatial and temporal data on Culex and Aedes mosquitoes in Ghana, including the detection of invasive Aedes species.
Findings
Culex mosquitoes were more abundant than Aedes mosquitoes in Ghana.
Aedes aegypti was the most dominant Aedes species observed.
Invasive Aedes albopictus was detected in Ghana in 2023.
Abstract
In Africa, Culex is an important vector that transmits West Nile virus, whilst Aedes mosquitoes transmit dengue, yellow fever, chikungunya, and Zika. However, very limited data is available on their bionomics and ecology. Here, we provide data on the abundance and distribution of Culex and Aedes mosquitoes in Ghana between 2017 and 2025. We collected 39,761 Culex and 6,047 Aedes mosquitoes using various mosquito-trapping tools. Both vectors were predominantly observed outdoors. Aedes aegypti was the most dominant Aedes vector observed in Ghana. The invasive Aedes albopictus was sampled in 2023, whereas Aedes vittatus was observed in Accra. Our data provides important information to support vector surveillance, ecological risk assessments, and integrated vector-management strategies.
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Taxonomy
TopicsMosquito-borne diseases and control · Dengue and Mosquito Control Research · Zoonotic diseases and public health