Fear of getting sick

I caught a cold this week. It's not really that bad, but every time I get sick, I worry that it could happen during the critical training period right before Ironman, or even worse, I could be sick on race day.

But with two school age kids, I'm not sure I can really do anything to guarantee I don't get sick. I guess I'll just continue to make sure I'm getting enough rest between training sessions, wash my hands often, keep eating right, and keep my fingers crossed.