Kathy Chalker, a Sydney art studio owner, is just the sort of voter that Australian Prime Minister Scott Morrison needs to win the country's next election: a long-time conservative party supporter with a small business in a swing seat.

But Chalker has already decided to vote Morrison out.

With her business closed indefinitely under a COVID-19 lockdown in Australia's biggest city, Chalker blames Morrison's government for what she sees as the blundering management of a vaccine rollout that is behind almost every other developed nation.