Will vaccines make a difference responding to the next outbreak?

At the moment life has returned to a COVID-normal in Australia with state borders gradually reopening after the outbreak in Melbourne. It comes as vaccines continue to rollout across the country, and a small but regular supply of the Pfizer shot arrives. So now we have access to a vaccine, how will that change how we respond to any outbreak that happens from now on? On today's Coronacast, will it be business as usual - ie lockdowns and restrictions - or could a new strategy be introduced? Also on today's show: * How old is Norman again? He's so old. What vaccine does he qualify for? And it's Quick Fire Friday time, where we explain why doctors need immunisation training, what Pfizer is diluted with and why there are lots of doses in one vial.