I am a cashier, and 60. Friday, (2 days ago) I was checking out someone, when his grandson started pointing out that he was breaking out with chicken pox, which I have never had! His grandpa said the dr. told him it wouldn't be contagious until the bumps started scabbing. I didn't want to take a chance, so I let another cashier finish ringing them up, while I went and washed my hands and arms. I did not have any direct contact with either, but I didn't know how many of the items I had rang up had been touched by this child, or if grandpa could have passed the germs over to me from handling the groceries I had already rang up. 4feet is probably the closest I was to the child, and 3 feet to grandpa. How worried do I need to be, and what precautions should I be taking? Thank you.