Abstract

Malaria transmission in sub-Saharan Africa remained critically dependent on Anopheles mosquito vectors, with 
existing control strategies including insecticide-treated nets and indoor residual spraying facing challenges from 
insecticide resistance, behavioral adaptation, and operational sustainability limitations. Innovative vector control 
approaches, particularly gene drive technologies that propagated desired traits through mosquito populations, offer 
transformative potential for malaria elimination. This review examined recent advances in vector control 
methodologies and gene drive systems, evaluating their molecular mechanisms, implementation feasibility, 
ecological implications, and potential contribution to sustainable malaria elimination in sub-Saharan Africa. A 
comprehensive analysis of contemporary literature on novel vector control strategies, CRISPR-based gene drives, 
population suppression and modification approaches, insecticide resistance mechanisms, and field implementation 
studies was conducted. Conventional vector control efficacy has declined due to widespread pyrethroid resistance 
mediated by target site mutations and metabolic detoxification mechanisms. Next-generation insecticides targeting 
alternative physiological pathways showed promise but required integrated resistance management. CRISPR-Cas9 
gene drive systems enabled population suppression through female sterility or sex ratio distortion, and population 
modification through antipathogen effector genes that block Plasmodium transmission. Laboratory cage trials 
demonstrated drive efficiency exceeding 95 percent, though ecological modeling reveals potential for resistance 
allele evolution and drive failure. Regulatory frameworks, community engagement protocols, and contained field 
trial designs are advancing toward responsible testing. Gene drive technologies represented a paradigmatic shift in 
vector control, offering self-sustaining interventions that could dramatically reduce malaria transmission. However, 
substantial uncertainties regarding ecological consequences, resistance evolution, transboundary governance, and 
equitable access necessitate cautious, stepwise progression with robust monitoring and adaptive management 
frameworks to ensure sustainable and ethical deployment.