CP and infection: Specific depletion of Treg cells during the sensitization period in high-dose CP- infected FoxP3-DTR-tg mice reversed the phenotype and allowed the high dose infection to result in allergic sensitization with significantly increased recruitment of eosinophils in the lungs (Figure 6B, 6D) as well as goblet cell hyperplasia, compared to infected FoxP3-DTR-tg mice that did not receive DT (Figure 6C, 6E).