bb - that's horrible, but I suppose better to know about colleague than not know. Every morning I dread hearing that someone has called in sick, and then try to find out what's wrong with them. So far we haven't had anyone off with v* this winter, but I fear that it's only a matter of time. Once that happens I find it very stressful at work as we work with shared computers and there are so many door handles to negotiate all day, and that's without having to use the unisex toilets 
marne - hope all went ok with going to see the puppy, and that dd's TA does stay at home until no longer contagious. I never used to think about implications of going to other people's houses, but this year has been terrible. We had to visit a couple of sets of dh's relatives over Christmas and I felt like I was playing roulette with each one
lofty - I have had dodgy guts for as long as I can remember - linked to stress and later confirmed as IBS. When I am anxious I often get d and so it has lost a lot of its fear for me. I don't like it, and as roundabout says it's the lack of control and fear of it happening when out in social situations. I suppose because I have had d so much, though mostly not with a bug, it doesn't hold the same fear for me as v*.
Thinking about it, it's really just noro that scares the hell out of me because it's so violent. If there was a d&v bug going round that just involved v* a couple of times I don't think I would be so terrified. If only we could get the vaccine now! I'm living my daily life, but am on guard all the time, and it's so tiring