Covid Australia live update: Queensland confirms hospital worker has Delta variant, NSW records 19 cases, states tighten borders

Annastacia Palaszczuk says Queensland lockdown will begin at 6pm and last three days; Barnaby Joyce fined for not wearing a mask. Follow latest updates

• NSW outbreak rises to 149 as support for businesses unveiled
• Australia's top medical body refuses to endorse PM's announcement that under-40s can get AstraZeneca
• Dan Andrews: halve cap on international arrivals
• Barnaby Joyce fined for not wearing mask after tipoff to police
• NSW lockdown rules and restrictions; Qld restrictions
• NSW hotspots; Qld hotspots; WA exposure sites
• Border closures: where you can and can't travel in Australia
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9.11am BST

In case you missed this earlier today:

Barnaby Joyce has been fined $200 for not wearing a mask while paying for petrol at a service station in Armidale after he was dobbed in by a member of the public.

Related: Barnaby Joyce fined for not wearing mask in breach of Covid rules after tipoff to police

9.02am BST

Millions of Queenslanders have been plunged into another snap lockdown amid fears a hospital worker from Brisbane may have spread the highly contagious Delta variant of Covid-19 to north Queensland, reports AAP.

Late on Tuesday, authorities confirmed she has the Delta variant, which is twice as contagious as the original virus and can be spread through fleeting contact that lasts just seconds.