Flu usually does become more serious in the young and elderly.But one of the concerns with this flu is that it seems to affect the middle age population more,20 to 30 age bracket I think.Appears to be only fatal in those who already have underlying medical conditions.That is all very serious,and I don't want to pop the humour bubble.CC's type of illness I may have had before...don't think that is fatal though,LOL! OOpsi.