Fig. 4From: Insecticide resistance status of Aedes aegypti in southern and northern GhanaSynergistic effects of PBO on the insecticide susceptibility status of Aedes populations from study sites. a–d The 24-h mortalities of Aedes mosquitoes from Tema (a), Accra (b), Ada (c) and Navrongo (d) respectively. Error bars represent the 95% confidence interval of the meanBack to article page