Estimates from WHO show a significant increase in the number of countries moving towards malaria elimination, with prevention efforts saving millions of dollars in health care costs over the past 14 years in many African countries.
According to the "World Malaria Report 2015", more than half (57) of the 106 countries with malaria in 2000 had achieved reductions in new malaria cases of at least 75% by 2015. In that same time frame, 18 countries reduced their malaria cases by 50–75%.
Across sub-Saharan Africa, the prevention of new cases of malaria has resulted in major cost savings for endemic countries. New estimates presented in the WHO report show that reductions in malaria cases attributable to malaria control activities saved an estimated US$ 900 million in case management costs in the region between 2001 and 2014. Insecticide-treated mosquito nets contributed the largest savings, followed by artemisinin-based combination therapies and indoor residual spraying.
