There are huge outbreaks of whooping cough at the moment. If it's in your area, it won't matter which childcare centre you go to, the whooping cough is obviously in your area and will be around everywhere. We have had warnings with DS2 to make sure he's up to date with immunisations and that DH and I get boosters because we have a large outbreak in our area and we live in a remote community, so it can be anywhere. If there's an outbreak near you, there really isn't much you can do about it! The childcare centre wouldn't be able to do much either, it's not necessarily their fault, and they are fulfilling their duty of care in telling you whem there is a case of it in the centre. Maybe you could call your local hospy, or the health dept to find out more if ther is an out break of it near you? And what you can do to steer clear of it as best you can.