You can hardly log in to facebook or read a newspaper without hearing some quite terrible stories about the novovirus bug that's going around right now.
Over the festive season there were stories of otherwise healthy and active families being laid low in their entirety by this widespread microbial nasty.
Known in the UK as the Winter Vomiting bug, it's a fairly widely recognised name, but anyone following the news this year - or even just overhearing conversations about it - is bound to be wondering why it's taken such a hold this year.
The answer - according to this BBC report, is down to it being a new strain of the bug that's lasted longer into the Antipodean summer than usual. So now you know ...