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Related Experiment Video

Updated: Apr 7, 2026

Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus

Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus

Published on: May 31, 2020

Urban malaria vector dynamics in Accra, Ghana.

Abdul Rahim Mohammed Sabtiu¹, Yaw Akuamoah-Boateng¹, Christopher Mfum Owusu-Asenso¹

¹Centre for Vector-Borne Disease Research, Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana.

Gigabyte (Hong Kong, China)

|April 6, 2026

Summary

Urban malaria is a growing concern in sub-Saharan Africa. This study found irrigation and peri-urban areas in Accra, Ghana, are key hotspots for Anopheles gambiae mosquitoes, needing focused control efforts.

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Last Updated: Apr 7, 2026

Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus

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Published on: May 31, 2020

Building a Better Mosquito: Identifying the Genes Enabling Malaria and Dengue Fever Resistance in A. gambiae and A. aegypti Mosquitoes

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Published on: August 14, 2017

Area of Science:

Public Health Entomology
Urban Tropical Disease Ecology

Background:

Urban malaria presents an increasing challenge in sub-Saharan Africa due to rapid urbanization and vector adaptation.
Limited data exists on the diversity and malaria transmission potential of urban mosquito vectors.

Purpose of the Study:

To assess the abundance, species composition, and behavior of Anopheles gambiae sensu lato (s.l.) in Accra, Ghana.
To identify high-risk areas for malaria transmission within diverse urban socioeconomic settings.

Main Methods:

Mosquitoes were collected across fifteen sites in Accra during dry and rainy seasons (2022-2024).
Host-seeking and resting Anopheles mosquitoes were sampled to determine abundance and species.
Data was analyzed across different socioeconomic settings and land-use types (irrigation, peri-urban).

Main Results:

A total of 20,945 host-seeking and 1,613 resting Anopheles mosquitoes were collected.
Anopheles mosquito abundance was highest in irrigation and peri-urban sites, and lowest in low socioeconomic areas.
Anopheles gambiae sensu stricto (s.s.) dominated host-seeking populations, while Anopheles coluzzii dominated resting populations.

Conclusions:

Irrigation and peri-urban areas in Accra are identified as significant hotspots for Anopheles mosquitoes.
Targeted surveillance and control strategies are crucial for these identified hotspots to mitigate urban malaria risk.