I think both my children have this. Not definite yet but no doubt will be one way or the other in the morning.
Do I have to keep them at home? I seem to remember it being dangerous to pregnant women but NHS direct is bizarrely only directing me to a 2007 press release about popular search terms.
One has had a cold for five days (very snotty, some mild fever), the other for three (sore throat, tired, some mild fever). This afternoon they both developed a very bright red cheek on one side and a rashy red cheek on the other.