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Fig. 43 | Malaria Journal

Fig. 43

From: Systematic identification of plausible pathways to potential harm via problem formulation for investigational releases of a population suppression gene drive to control the human malaria vector Anopheles gambiae in West Africa

Fig. 43

Pathway 41 Animal health: Potentially cumulative Cas9/gRNA off-target, or re-targeted, nuclease activity in dsxFCRISPRh transgenic could cause increase in insecticide resistance, fitness or vector competence to increase disease transmission in livestock. The net effect of the population suppression gene drive should ultimately be to reduce this specific harm by reducing the density of mosquitoes including variants. For this potential harm, the first tier of the analysis would involve bioinformatic and molecular assessments of the potential for off-target or re-targeted mutations to occur in the transgenic. In the event of such mutations being detected, a second tier of phenotypic characterisations would then be performed. The components of vectorial capacity (V) that would be affected in this pathway are shown in red in the equation

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