The potential of gene drives in malaria vector species to control malaria in African environments

Gene drives are a promising means of malaria control with the potential to cause sustained reductions in transmission. In real environments, however, their impacts will depend on local ecological and epidemiological factors. We develop a data-driven model to investigate the impacts of gene drives th...

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Main Authors: Hancock, PA, North, A, Leach, AW, Winskill, P, Ghani, AC, Godfray, HCJ, Burt, A, Mumford, JD
Format: Journal article
Language:English
Published: Nature Research 2024
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author Hancock, PA
North, A
Leach, AW
Winskill, P
Ghani, AC
Godfray, HCJ
Burt, A
Mumford, JD
author_facet Hancock, PA
North, A
Leach, AW
Winskill, P
Ghani, AC
Godfray, HCJ
Burt, A
Mumford, JD
author_sort Hancock, PA
collection OXFORD
description Gene drives are a promising means of malaria control with the potential to cause sustained reductions in transmission. In real environments, however, their impacts will depend on local ecological and epidemiological factors. We develop a data-driven model to investigate the impacts of gene drives that causes vector population suppression. We simulate gene drive releases in sixteen ~ 12,000 km2 areas of west Africa that span variation in vector ecology and malaria prevalence, and estimate reductions in vector abundance, malaria prevalence and clinical cases. Average reductions in vector abundance ranged from 71.6–98.4% across areas, while impacts on malaria depended strongly on which vector species were targeted. When other new interventions including RTS,S vaccination and pyrethroid-PBO bednets were in place, at least 60% more clinical cases were averted when gene drives were added, demonstrating the benefits of integrated interventions. Our results show that different strategies for gene drive implementation may be required across different African settings.
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spelling oxford-uuid:889f5a1f-4b97-46d6-91f8-2b287057e9232024-10-18T20:09:05ZThe potential of gene drives in malaria vector species to control malaria in African environmentsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:889f5a1f-4b97-46d6-91f8-2b287057e923EnglishJisc Publications RouterNature Research2024Hancock, PANorth, ALeach, AWWinskill, PGhani, ACGodfray, HCJBurt, AMumford, JDGene drives are a promising means of malaria control with the potential to cause sustained reductions in transmission. In real environments, however, their impacts will depend on local ecological and epidemiological factors. We develop a data-driven model to investigate the impacts of gene drives that causes vector population suppression. We simulate gene drive releases in sixteen ~ 12,000 km2 areas of west Africa that span variation in vector ecology and malaria prevalence, and estimate reductions in vector abundance, malaria prevalence and clinical cases. Average reductions in vector abundance ranged from 71.6–98.4% across areas, while impacts on malaria depended strongly on which vector species were targeted. When other new interventions including RTS,S vaccination and pyrethroid-PBO bednets were in place, at least 60% more clinical cases were averted when gene drives were added, demonstrating the benefits of integrated interventions. Our results show that different strategies for gene drive implementation may be required across different African settings.
spellingShingle Hancock, PA
North, A
Leach, AW
Winskill, P
Ghani, AC
Godfray, HCJ
Burt, A
Mumford, JD
The potential of gene drives in malaria vector species to control malaria in African environments
title The potential of gene drives in malaria vector species to control malaria in African environments
title_full The potential of gene drives in malaria vector species to control malaria in African environments
title_fullStr The potential of gene drives in malaria vector species to control malaria in African environments
title_full_unstemmed The potential of gene drives in malaria vector species to control malaria in African environments
title_short The potential of gene drives in malaria vector species to control malaria in African environments
title_sort potential of gene drives in malaria vector species to control malaria in african environments
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