The history of malaria prevalence in Africa is a long term cycle of highs and lows. However, there's been little change in the high transmission belt that covers parts of West and Central Africa.
Stronger malaria prevention like a vaccine is urgently needed for effective response in endemic regions.
Malaria in South Africa is close to being eliminated but to complicate matters scientists have identified a second mosquito transmitting the disease.
Eliminating malaria in Africa has been held back by a range of factors, including a lack of funds and drug and insecticide resistance challenges.