I am a classroom teacher who just ordered fertilized eggs for my classroom incubator from a major hatchery in my state. I want to learn more about avian influenza and if I need to be concerned. Once the chicks hatch, is it safe for me to allow the children to hold them? Do I need to follow a stricter than normal cage cleaning regimen? I read that the flu cannot be transferred through the egg to the chick. Is this true? I appreciate more information.