Increasing insecticide resistance in Anopheles funestus and Anopheles arabiensis in Malawi, 2011-2015.

Background: Susceptibility of principal Anopheles malaria vectors to common insecticides was monitored over a 5-year period across Malawi to inform and guide the national malaria control programme.

Methods: Adult blood-fed Anopheles spp. and larvae were collected from multiple sites in sixteen districts across the country between 2011 and 2015.

Risk factors for mosquitoes in rural and urban areas of Blantyre District, southern Malawi.

Background: Although urban malaria transmission is low and seasonal, it remains a major public health problem. This study aimed at demonstrating the presence of mosquitoes and their potential to transmit malaria in urban settings.

Methods: Two cross-sectional surveys were carried out in Blantyre District, Malawi, during the dry and wet seasons of 2008 and 2010, respectively.