As pubs and restaurants re-open in some states, you're probably thinking that it's safe to return as long as you maintain 1.5 metres distance from other diners.

But the 1.5 metre "rule" for social distancing is really just a best effort recommendation, and isn't a guarantee.

So are social distancing recommendations enough when you're in a closed space for a long time?

On today's show:

* Can COVID-19 be spread through the air-conditioning?

* Will social distancing save me?

* Is it true that no scientist has physically isolated an actual COVID-19 virus that can be viewed under a powerful enough microscope?

And Norman and Tegan talk about some exciting research about antibodies.