Covid Australia live update: WA introduces border restrictions with Victoria, four fined after taking superyacht from Sydney to Queensland

Gladys Berejiklian extends shutdown; seven more cases in Victoria; WA set to lock out NSW travellers for another two months

• NSW update: Sydney lockdown extended at least two weeks
• Victoria update: Jeroen Weimar extremely frustrated' over new Melbourne cases
• Restrictions: NSW; Qld; WA, NT and SA; Vic; Border closures
• Hotspots: NSW map; Qld list; WA; Vic
• Vaccine rollout tracker; get our free news app; get our morning email briefing

9.09am BST

A teacher at a Bacchus Marsh high school has tested positive for Covid-19, bringing the total number of cases in Victoria on Wednesday to eight.

Bacchus Marsh Grammar principal Andrew A. Neal confirmed in a statement on Wednesday that the teacher had returned a positive test.

The teacher had been at a school staff day on Monday 12 July but had not been in contact with students on Tuesday or Wednesday, he said.

As a result of this, all staff who were at the staff day on Monday 12 July have been directed by the Covid-19 public health division department of health to isolate and be tested," he said.

Neal said that given the need for testing of virtually all staff and the need for additional cleaning" the school's Woodlea and Maddingley campuses would be closed on Thursday and Friday.

This is a fairly fluid situation and we will endeavour to keep parents informed of the situation as it develops as we have further information of any additional public health requirements," he said.

At this stage, I would strongly advise that if any student does start to present with any of the recognised Covid symptoms, they are tested as soon as possible as a matter of precaution."

Neal said the school was waiting for instructions about the appropriate sanitation and cleaning of the school", and in the event of a longer period of confinement for staff" online learning would commence on Monday 19 July.

8.54am BST

NSW Health has updated its list of venues of concern. New venues for close contacts are in Redfern, Fairfield and Cabramatta.

There are a number of new venues for casual contacts in areas including Fairfield, Fairfield Heights, Rosebery and Waterloo.