It's time to stop counting COVID shots

If you haven't had COVID or a booster shot in the last six months, the chances are you're more vulnerable than you think.  In a few weeks, a fifth dose of a COVID vaccine will be offered to anyone over 18, and we're being urged to take it up.  Today, epidemiologist Catherine Bennett on how we're entering a new phase of the pandemic.  Featured:  Professor Catherine Bennett, chair in epidemiology, Deakin University