Mobile Emergency Care Service (SAMU) transfer Binta Ba, who is eight months pregnant and has COVID-19, to the hospital in Dakar, Senegal, Thursday, Aug. 5, 2021. Ambulance services in the West African nation of Senegal say about 90% of their calls right now are responding to COVID-19 patients with trouble breathing. The avalanche of cases comes as Senegal confronts a devastating third wave with the arrival of the delta variant. (AP Photo/Leo Correa), APTOPIX