Prep them by doing the following:
1: Make sure that you give them great nutrition:
No sugar, no processed foods, only the good stuff!
2: Make sure that they are exercising, moving, walking, running, (not being couch potatoes!)
3: They need to be well rested! Lots of sleep.
4: Garlic, oil of oregano, mushroom and other supplements that can help stimulate the immune system!
5: Chiropractic adjustments to clear the nervous system and help them be ready for the immune system challenge that they will face.
6: Positive imagery and emotional support.