Comparison of (A) prevalence, (B) levels, and (C) levels in relation to total IgE for α-Gal sIgE in children from rural and less rural areas (“urban”) of Esmeraldas province of Ecuador and the rural community of Kabati compared with the industrialized “urban” town of Thika, Kenya. NS, Nonsignificant. The values in Fig 2, B, reflect the number of samples that were less than 0.35 IU/mL. Prevalence values were compared using χ2. Levels of α-Gal sIgE were expressed as geometric mean of positives (95% CI) and compared by the Mann-Whitney U test, *P < .05, NS P > .05.