Keep her off! And seeker: I am stunned. It must be thanks to people like you that DS almost needed an operation ( under GA) and I almost ended up in hospital at 30 weeks' pregnant last year: repeated nasty bugs from nursery.
I keep her off too! Seeker- really? Your the reason my dd repeatedly catches these bugs and misses more school than she has to then! A fever of 38.2 obviously indicates some type of illness so why would you send your child to school spread it? Plus if I had a fever I would feel pretty damn awful, I'm not sure why you want wan to inflict going to school while feeling unwell on your child.
High temp=no school to me, because her body is fighting an infection and it has more chance of winning faster, without antibiotics if you take a little extra care. Quite apart from not sharing it with everyone else!