(A) ETEC prevalence among children less than 12 months of age (n = 936 diarrheal samples and n = 424 control samples) and children 12 to 24 months of age (n = 193 diarrheal samples and n = 320 control samples). *, P < 0.001 for the comparison of ETEC prevalence between children <12 and 12 to 24 months of age for diarrheal samples (3.4% and 14.5%, respectively) and control samples (1.2% and 8.4%, respectively); **, P < 0.05 for the comparison of ETEC prevalence between diarrheal and control samples among children 12 to 24 months of age (14.5% and 8.4%, respectively). (B) Age distribution for toxin gene types of ETEC among diarrheal samples (n = 32 children <12 months of age and n = 28 children 12 to 24 months of age) and control samples (n = 5 children <12 months of age and n = 27 children 12 to 24 months of age).