I have 10 young grandchildren that we spend a fair amount of time with. Lots of times they can be coming down with a cold or sore throat and I won't know until after. Also being in public a person is constantly surrounded by people with infections. How dangerous or serious can infections be for me? any suggestions? I know I can be careful by washing hands, etc but I also do not want to live in a bubble. Is wearing a mask in public recommended or is that overkill. I would rather not.