An ambulance outside the Koubri Centre de Santé et de Promotion Social (CSPS). In the rainy season from June to September the majority of health issues treated at the center are related to malaria. Burkina Faso is one of the ten countries the most affected by malaria in the world. Malaria is the country's deadliest disease. Koubri, Kadiogo district, Burkina Faso. 19/08/2019.