We keep hearing that the coronavirus vaccine isn't 100 per cent effective in stopping transmission of the virus from one person to another.

And so you could be forgiven for thinking, well what's the point of getting vaccinated if it only protects you from severe disease and doesn't help protect others around you.

Well, the good news is that it does help protect others because it does lower the risk of transmitting the virus, and we have the evidence to prove it.

That's on today's Coronacast.

Also on today's show:

* Are we getting to the peak of the outbreak in NSW?

* Why do you have to inject the COVID-19 vaccine?