The Morrison government has come under attack over “failed” quarantine arrangements and the sluggish pace of the national vaccine rollout as Victoria enters a seven-day “circuit breaker” lockdown. There is mounting concern the latest virus wave could have become “uncontrollable” with almost 30 cases in the Melbourne-based cluster. The acting Victorian premier, James Merlino, on Thursday pointed to vaccine delays and “aged care facilities where not one person has been vaccinated” as practical problems in managing the response. Both are the responsibility of the federal government. His Labor colleagues in Canberra declared the situation could have been avoided.