Does your second child always get sick?

I nanny a two year old and I have my 9 month old as well.

The two year old seemed sick today so I watched like a hawk and sprayed her hands with hand sanitizer all day and didn’t let her kiss or hug my little one. Of course they played in the same areas though.

Found out after she went home and was taken to the doctor that she has strep. I went around and double cleaned all surfaces and toys. I’m so paranoid!! I don’t want my little one to end up with strep.

Do you find your other children always get sick if one of them is sick? I’m hoping for the chance that she didn’t get it 🙈