 When I grow up, I want to be a baseball player. I would be the pitcher because they get to do something all the time. If your child is sick over and over again, it could be PI, a defect in the immune system that affects millions. Early detection can give children a chance to dream. Jeffrey Modell Foundation. 25 years of helping children reach for their dreams. Visit us at Info4PI.org or call 1-866-Info4PI.