EagleRiverDee

It's hard when you're around kids. Here are my suggestions, but you're probably doing most of them already:
-Flu shot
-Wash hands often
-Never, never touch your hands to your nose, eyes, mouth because that's where most viruses gain entry.
-Get some exercise daily (exercise boosts immunity) - yoga, tai chi, walking all work and are gentle.
-Eat a varied diet to get adequate levels of vitamins/minerals
-Consider using herbal immune boosters
-Acupuncture and massage both have a proven track record for immunity boosting
-Ending your shower on a burst of cold water can stimulate the immune system- my naturopath has me cycle water hot/cold three times in the shower.

Good luck!