Health official takes blood sample of a mother for malaria testing at Ajah in Eti Osa East district of Lagos, on April 21, 2016. 
Dozens of patients and community members received malaria testing and treatment from the non-governmental organisation Development Africa, which in collaboration with Total company distributes treated mosquito nets and other actions to prevent malaria attacks to mark this year's World Malaria Day.  / AFP / PIUS UTOMI EKPEI        (Photo credit should read PIUS UTOMI EKPEI/AFP/Getty Images)