David Wood, Facebook asked:
How is the 'flu caught in the first place?
John - Again, we don't know in a great detail. I mean, clearly of course, if you sneeze, then you're producing a lot of virus into the immediate vicinity of you. So, coughing and sneezing Ėbeing symptomatic - those symptoms probably do aid the spread of the infection quite a lot. Thatís why you know, blowing your nose in a tissue and disposing of it properly is a good idea. But in detail, we don't know. Itís incredible that we don't know very well but we don't.