A Global Index Representing the Stability of Malaria Transmission
By ANTHONY KISZEWSKI1, ANDREW MELLINGER1, ANDREW SPIELMAN1, PIA MALANEY1, SONIA EHRLICH SACHS1, JEFFREY SACHS1
Abstract To relate stability of malaria transmission to biologic characteristics of vector mosquitoes throughout the world, we derived an index representing the contribution of regionally dominant vector mosquitoes to the force of transmission. This construct incorporated published estimates describing the proportion of blood meals taken from human hosts, daily survival of the vector, and duration of the transmission season and of extrinsic incubation. The result of the calculation was displayed globally on a 0.5° grid. We found that these biologic characteristics of diverse vector mosquitoes interact with climate to explain much of the regional variation in the intensity of transmission. Due to the superior capacity of many tropical mosquitoes as vectors of malaria, particularly those in sub-Saharan Africa, antimalaria interventions conducted in the tropics face greater challenges than were faced by formerly endemic nations in more temperate climes.
https://www.ajtmh.org/content/journals/10.4269/ajtmh.2004.70.486?crawler=true