We are having DS's party this weekend and we have about 15 kids invited (plus their parents - all kids are young and we are friends with the parents).

One of the parents just rang and said that their DD has a cold and do we mind them coming? From my point of view I don't, as long as it's just a cold, but I don't feel that I can speak for everyone else who is coming to the party.

In the past whenever my kids have had colds and there is a party we don't go, even if the host says it's fine to come.

What's the etiquette here?