http://www.worldmalariaday.org/

"World Malaria Day" was established and approved at the 60th World Health Assembly (WHA) in March 2007. It replaces "Africa Malaria Day" which has been commemorated every year since 2001 on 25 April and will be celebrated from henceforth annually on the same day, in order to provide education and understanding of malaria as a global scourge that is preventable and a disease that is curable.