Mapping Malaria Transmission Intensity in Malawi, 2000–2010
Open Access
- 6 November 2013
- journal article
- Published by American Society of Tropical Medicine and Hygiene in The American Journal of Tropical Medicine and Hygiene
- Vol. 89 (5), 840-849
- https://doi.org/10.4269/ajtmh.13-0028
Abstract
Substantial development assistance has been directed towards reducing the high malaria burden in Malawi over the past decade. We assessed changes in transmission over this period of malaria control scale-up by compiling community Plasmodium falciparum rate (PfPR) data during 2000–2011 and used model-based geostatistical methods to predict mean PfPR2–10 in 2000, 2005, and 2010. In addition, we calculated population-adjusted prevalences and populations at risk by district to inform malaria control program priority setting. The national population-adjusted PfPR2–10 was 37% in 2010, and we found no evidence of change over this period of scale-up. The entire population of Malawi is under meso-endemic transmission risk, with those in districts along the shore of Lake Malawi and Shire River Valley under highest risk. The lack of change in prevalence confirms modeling predictions that when compared with lower transmission, prevalence reductions in high transmission settings require greater investment and longer time scales.This publication has 34 references indexed in Scilit:
- How Well Are Malaria Maps Used to Design and Finance Malaria Control in Africa?PLOS ONE, 2013
- Malaria control in Malawi: Current status and directions for the futureActa Tropica, 2012
- Lack of Decline in Childhood Malaria, Malawi, 2001–2010Emerging Infectious Diseases, 2012
- Impact of Health Facility-Based Insecticide Treated Bednet Distribution in Malawi: Progress and Challenges towards Achieving Universal CoveragePLOS ONE, 2011
- Modelling the global constraints of temperature on transmission of Plasmodium falciparum and P. vivaxParasites & Vectors, 2011
- Comparison of anaemia and parasitaemia as indicators of malaria control in household and EPI-health facility surveys in MalawiMalaria Journal, 2010
- Standardizing estimates of the Plasmodium falciparum parasite rateMalaria Journal, 2007
- Socially marketed insecticide-treated nets effectively reduce Plasmodium infection and anaemia among children in urban MalawiTropical Medicine & International Health, 2006
- Spatial analysis and mapping of malaria risk in Malawi using point-referenced prevalence of infection dataInternational Journal of Health Geographics, 2006
- The need for maps of transmission intensity to guide malaria control in AfricaParasitology Today, 1996