Ok CP is rife in ds3's playgroup and surely it is only a matter of time until ds3 gets it, especially as we are going on holiday next week.
I have been thinking about it. CP seems to come out at certain times of the year - I remember when my other three got it, it was a february and there were spotty kids all over the place.
At other times, no-one seems to have it.
So my question is this: what happens to the CP virus at those times when no-one seems to have it? Where does it go? How does it come back?