You had a child who was not sick in the first seven months of their life? Cound yourself lucky.

Children get sick, you can't avoid it. Why does it matter where they picked up the germs? They just do, and wait until your little one starts school and that breeding ground for bacteria, viruses and other crud.

We all grew up just fine without constant sanitizing and antibacterial wipes, and your child needs to be exposed to things to develop immunities. Just continue on with your precautions and be prepared to deal with some illnesses.