I always tell my parents when signing on (especially first time parents just coming off mat leave) that they should expect 6-8 illnesses in the first year as they are being exposed to different things and building up thier immune system. i have never gotten anything that has come into my daycare. I did get one cold ...just picked it up... no one else got it and i was never happier to see a friday in my life ...at the end of the day i walked upstairs and got into bed till sunday .... some kids are more sickly then others especially if the parent is alway santizing them and not allowing them to naturally build their immunities.....kids need to eat dirt.....JMO