IL33 and Diarrhea: Fig. 1 shows results from two separate repeated experiments in which the mice were injected with IL-33, twice a week for two weeks starting at the age of 10-wk (A) or 7-wk (B–H) respectively. One week after IL-33 injection, some of these mice as young as 8-wks of age (Fig. 1B) started developing diarrhoea, and 80% of them had diarrhoea at the age of 11–12 weeks (Fig. 1A, B).