How can you tell if your child care provider is in good health?

You mostly can't. Beyond the signs of obvious illness (fever, runny nose, cough, etc.), you can't tell. Just by looking, you can't tell if your child care provider might be carrying a virus, if she has a silent cancer growing, if she has diabetes she's not taking care of effectively, or most anything else. You can only see the illnesses that are obvious to all of us.