How you and 200 friends can save one hospitalisation

We've said it before and we'll say it again - make sure you get your booster dose. 

But what, you ask, is in it for me? How likely am I to be the one who dodges severe disease? 

Well a new study has quantified this. It's a number familiar to epidemiologists - the number needed to treat to prevent a certain outcome. 

Also this week: where are we at with repurposing existing drugs to prevent COVID? 

What's happening with flu numbers? And who was Tegan's surprise fluffy office visitor?