World Malaria Day on April 1 highlights the danger of malaria and calls for action . According to the WHO there were 1 million cases of malaria in 2006 . About 170 species of such parasites exist , but only four cause malaria in humans . 880,000 people died of malaria in 2006 , a preventable and curable disease .
World Malaria Day on April 1 highlights the danger of malaria and calls for action . According to the WHO there were 1 million cases of malaria in 2006 . 880,000 people died of malaria in 2006 , a preventable and curable disease .