Valerie, your memo is great but I think this is the time of the year for a reminder about sickness too. I'm about to include that in a letter to parents. Maybe something like this:

- Please remember that if you or your child falls ill that we have a 24 hour policy to refrain from coming to daycare so that it does not spread through the daycare. Also, it is extremely inconvenient for many people if I become ill with the flu and have to close the daycare for all of the families.