Every day, 1,200 children succumb to malaria, deaths that could easily be prevented with effective and low-cost interventions. Saturday marks World Malaria Day, and while advocates are celebrating some noteworthy gains, they’re also calling on the health community to ramp up its efforts to protect those who are most vulnerable to the disease with affordable measures. Through malaria prevention, diagnosis and treatment, 4.3 million lives were saved between 2001 and 2013, according to UNICEF.