by Andrew BEATTY SYDNEY, Australia (AFP) — Australia’s coveted status as a haven from the pandemic could be at an end, with experts warning that a sustained Delta outbreak makes a return to “Covid zero” unlikely. After long stretches with zero local cases — what Australians once jokingly referred to as “doughnut days” — a Sydney outbreak has now grown to 4,610. Record numbers of new cases are being reported each day despite widespread lockdowns. […]