We're back! So what did we miss?

Although we didn't begin this year with any lockdowns or border closures, the pandemic hasn't abated.In fact we're off to a worse start than we had in 2022. Australia surpassed 1,000 deaths a whole week earlier than it did last year. New subvariants are circulating fast. So what's changed? What's the best protection? And could sluggish surveillance be leaving us vulnerable?