First we observed that the proportions of Treg relative to CD4+ T cells in this population are slightly higher than those reported in populations not exposed to schistosomiasis as reported elsewhere [35], [45], but comparable to those reported for Kenyans exposed to S. mansoni[36] suggesting a relationship between exposure to the helminth infection and the development of Treg cells. The gene discussed is CD4; the disease is schistosomiasis.