A notice went up at the beginning of the week at nursery saying that a sibling of one of the children at my son's nursery has german measles. Today, ds was sick in the night and this morning. He then had a long sleep and has just woken with a temp. of 37.7. I've given Calpol and hope this is nothing more than an end of the term bug. Just in case, it isn't, what symptons should I look for in him or his 6 month old sister? If it makes any difference, he has had the MMR but not the booster (he is 3.6yrs).
TIA for support and advice