ALDH1L1 and Stroke: Based on correlations in individual taxon’s abundance, a similar pattern of co-occurrence previously identified as the “Christensenellaceae Consortium” includes 11 of the 12 recurrent ethnically varying taxa [34], and members of this consortium associate with genetic variation in the human formate oxidation gene, aldehyde dehydrogenase 1 family member 1 (ALDH1L1), which is a genetic risk factor for stroke [35, 52, 53].