ACCRA, GHANA – On the afternoon of Dec. 26, 2022, Chris Maurice finally capitulated and went to the emergency room at Hospital Clinic de Barcelona, just west of the city’s gothic quarter. For roughly 10 months, the 26-year-old CEO of the largest centralized crypto exchange in Africa had ignored many of the symptoms consistent with malaria as he bounced between 21 different countries on the continent, advising heads of state on bitcoin adoption and setting up institutional accounts for his business, Yellow Card.By the time Maurice was admitted to the intensive …