How are chicken pox spread? Tonight we were at the store waiting for our pizza (it was a long wait

) and this weird woman came over and started talking to us, and telling me my daughter looks just like her daughter and all this, and while this goes on her other daughter was standing quite close to .adriana and talking/playing with her. Well then she tells me how her little one is at home with the flippin' chicken pox!!

So...since these 2 obviously live with her, can they carry a contagious bug and make my baby sick? This lady's husband also has them I guess. And my cousin said she was pretty sure the girl that was there had the chicken pox as well because she saw the spots on her arm

I do believe .adriana has been vaccinated against them, but what are her chances? I am sure the girl didn't touch .adriana, but she was standing near her and I don't know if that girl touched the cart .adriana touched (The one she was in) help me