My friend Nod has measles. That’s not good – it’s much more dangerous in adults than in children. Hopefully he’s doing all the right things (calling NHS Direct is great for this kind of thing) to make sure it’s treated properly. I haven’t been able to find much information on the actual risks to adults, so we’ll have to wait and see. Get well soon, Nod!

Incidentally, the MMR vaccine does inoculate most people against measles, mumps and rubella. But not everyone. Half the point of a vaccine is that anyone who does get infected is surrounded by people who are immune, so it can’t spread.* So if you’ve seen Nod recently you should check yourself even if you’ve had the MMR vaccine.

*This is why the recent MMR scandal was so dangerous. Nutso parents who refused (based on hearsay, against government advice, and a complete lack of any kind of common sense or, more scientifically, risk-assessment) to give their children the MMR vaccine were in fact endangering everybody else (including adults), not just their own children. I’ve never actually met anyone who refused, but woe betide them if I do 🙂