Today marks one year since coronavirus officially reached our shores and changed our lives forever.

On January 25, 2020, Victorian health authorities detected the first case of COVID-19 in a man who had flown in from Guandong province a few days earlier.

On today's Coronacast, Dr Norman Swan and Tegan Taylor look back on the moment they realised that our world was about to be upturned.

Also on the show:

* What could the second generation of vaccines look like and why would be bother if we already have one?

* Is the UK variant *really* more contagious?

* Did Norman actually make it to Rottnest Island in the end?

* Is Norman pumping iron in the gym again?