GAD1 and diabetes mellitus: The seroprevalence of GADA was 24% and 7% in diabetes patients and controls respectively. IA-2A and ZnT8A were very low in both diabetes patients and in controls. In patients who had any antibody positive, GAD titer was not different in the Cameroonian and Belgian populations (82% vs 88%). The seroprevalence of IA-2A and ZnT8A was higher in the Belgian than in the Cameroonian population.***Limitation: The antibody cut-offs were not population-specific.