Sam has chickenpox. Tom had it a few years ago, and had to miss Cropredy. I can't remember if Eleanor has had it. I don't think she has.
Ed and I have already had it. I got it when I was 18 and started an epidemic - I gave it to Ed, Steph, Steph's boyfriend and who knows who else. Chickenpox is really horrible when you're an adult. I had a high fever with hallucinations. Ed collapsed in a train station and everyone stepped over him assuming he was a drunk. It's much better to get it when you're young when the symptoms are less severe and you get a week off school, with your mum taking care of you.