Guess I think the only question you could ask the centre is what their policy is on having children who aren't immunised a the centre as I would think that this would increase the likelyhood of things like whooping cough being introduced. Our centre is pretty vigilant over any sort of issues and we've been asked to get our DS cough checked out to make sure it hasn't been whooping cough. I had been fairly sure it wasn't as had been the same type of cough that he'd had several times previously when I had taken him to a doctor but it was nice to think that for the sake of the other children they weren't taking any chances. (Okay I wasn't so pleased to have to pay $65 to the doctor to tell me something I already knew). Other centres I know also do the same thing.

Whooping cough does seem to be pretty prevelant these days and you don't need to be doing to day care to get it. One of the boys in my MGs caught it and his mum is a SAHM. As pps have said while parents and grandparents might be able to get their booster there are dozens of other people little ones come in contact with who haven't.

If your DS has been innoculised if he gets it it will be a milder dose than if he hasn't.

PS wouldn't be happy about dirty dishes being left around in a centre though. To me that makes it sound unclean.

Hope weekend goes okay as it would be tough on your own especially if you have a sick little one. Big hugs