G6PD A- variant SNP frequency map for Africa (map series 2). Bar charts representing the frequencies of G6PD variants. The variants that were tested for in each location are listed above the x-axis. Empty spaces along the x-axis indicate that the named variant was tested for but not identified in the population sample. Survey locations are mapped to closest approximation at the point of origin of the plots and exact locations shown in Additional file 4. Sample size is listed under each plot. Equivalent maps of the Americas and Asia are Additional files 3 and 5.