WHO and partners will mark World Malaria Day by celebrating the achievements of countries that are approaching – and achieving – malaria elimination.

World Mosquito Day, observed annually on 20 August, is a commemoration of British doctor Sir Ronald Ross's discovery in 1897 that female anopheline mosquitoes transmit malaria between humans, thus confirming the mosquito-malaria theory, an idea that had been building in recent years through the work of various contributors such as Charles Louis Alphonse Laveran and Patrick Manson.