Up to 600 people associated with the Australian Open have been told to isolate after being identified as casual contacts of a quarantine hotel worker who has tested positive to coronavirus.
Restrictions have now been reintroduced across Victoria and a massive contact tracing operation is underway after the new confirmed case, Premier Daniel Andrews announced in an emergency press conference overnight.
The infected 26-year-old Noble Park man had been working as a resident support officer as part of the Australian Open quarantine program.
VICTORIA COVID RESTRICTIONS TIGHTENED: What you need to know
Mr Andrews said the hundreds of tennis players and support staff told to self isolate and await a negative test result may have an impact on Thursday's play at events in the lead-up to the Open.
"But at this stage, there's no impact to the tournament," he said.
There will be no matches played at Melbourne Park on Thursday, and a decision is expected later today on the Melbourne Summer Series and ATP Cup tournaments that finish this week.
The infected man last worked at the Grand Hyatt on January 29 and undertook a PCR nasal test at the end of that shift, returning a negative test result at that time.
READ MORE: Melbourne Summer Series and ATP Cup at Melbourne Park on hold
He later developed symptoms and got tested, returning a positive result yesterday.
He is now in a health hotel and his household contacts have been isolated.
The infected man is also a Country Fire Authority volunteer and has attended at least one CFA function.
"We've been through FRV (Fire Rescue Victoria) and CFA, contacting brigades," Mr Andrews said.
"They're doing deep-cleaning. They, in turn, are contacting their members, their staff as well as their volunteers, and we're confident that people will get the information that they need as quickly as possible."
READ MORE: Investigation into Melbourne hotel quarantine spread
Victoria's New Year's Eve or Black Rock cluster restrictions have been reimposed from midnight, Mr Andrews said.
The restrictions mean private gatherings must now be restricted to 15 people in a home, masks must be worn indoors, and the expanded office capacity limits which were due to come into effect on Monday have been paused.
Mr Andrews urged for people to remain calm.
"This is one case. There's no need for people to panic," he said.
"There's no need for people to be alarmed. We Victorians know what to do, and we have proven, as a state, very successful at managing these sorts of outbreaks, these sorts of issues."
Exposure sites linked to new case
Friday 29 January
- Exford Hotel, Melbourne, between 11pm and 11.35pm.
- Kebab Kingz, West Melbourne, between 11.24pm and 12.15am.
Saturday 30 January
- Club Noble in Noble Park, between 2.36pm and 3.30pm.
- Aces Sporting Club (Driving Range), Keysborough, between 10.00pm and 11.15pm.
Sunday 31 January
- Northpoint Café Brighton, between 8.10am and 9.30 am
- Kmart Keysborough, Parkmore Keysborough Shopping Centre, between 4pm and 5pm.
- Kmart Brandon Park, Brandon Park Shopping Centre, between 4.35pm and 5.10pm.
- Coles Springvale, 825 Dandenong Rd, Springvale, between 5pm and 6pm.
Monday 1 February
- Bunnings Springvale, between 11.28am and 12:15pm.
- Melbourne Gold Academy, Heatherton, between 5.19pm and 6.36pm.
- Lululemon, DFO Moorabbin Airport, between 5pm and 5.45pm.
- Woolworths Springvale, between 6.30pm and 7.30pm.
- Nakama Workshop, Clayton South, between 11.15am and 12pm.
- Sharetea, Springvale, between 6.50pm and 7.30pm.
New statewide restrictions
– The limit on the number of people gathering in a household will be reduced from 30 to 15, meaning the household members plus 15 visitors (excluding children under 12 months of age).
– Masks mandatory in public indoor spaces. If you have visitors in your home, it is strongly recommended that masks are worn during the visit. Masks must be worn in indoor public spaces apart from when eating or drinking. If you are planning to leave your home – take a mask.
– The 75 per cent 'return to work' cap in both public and private sectors scheduled for Monday 8 February will be paused and the current cap of 50 per cent will remain in place.
'We can do it'
Chief Health Officer Professor Brett Sutton delivered a message of hope to Victorians as the state prepares to battle another outbreak on the very same day it announced total elimination of the virus.
"We will do it again. If we have to do it 10 times over, we can do it," he said.
"We've got the tools. Really importantly, we've learned the tough lessons and we've provided those tough lessons to the rest of Australia.
"We've learnt from our counterparts. Every time there's a challenge that one of our interstate counterparts faces, we learn from it and vice-versa.
"Australia's in a good position."
Mr Andrews pleaded for Victorians to be tested as soon as possible if they have any symptoms or attended an exposure site.
"I think the community knows and understands that what starts with one case, if you want to keep it at very small numbers, we all have to play our part," Mr Andrews said.
"The most important thing … every single Victorian, if you've got symptoms, please go and get tested. Don't wait a moment. Get tested first thing tomorrow morning. You'll be doing a great service to you, your family, and every single Victorian family."
Worker had 'high viral load'
Dozens of the man's close contacts are already in isolation, Professor Sutton said. Precise numbers will be announced on Thursday.
He warned more positive cases would likely emerge due to the infected man's "high viral load" and after his close contacts are tested.
"I think the testing of this individual indicates that he probably had a high viral load. That's what the test results show," Professor Sutton said.
Victoria's testing commander Jeroen Weimar said contact tracing would continue through the night.
"The individual concerned has provided outstanding information," he said.
"We are continuing to talk to him tonight to extract as much information as possible about his movements, to ensure we have an accurate view about his contacts and his exposure sites."
Additional lanes on drive-through testing sites will be opened on Thursday, with 13 major testing sites in Melbourne's south-east to be open for a full 12 hours from 8am.
There will also be additional testing stations set up at Brighton and Monash University, with more sites potentially to be opened throughout the day.
Mr Weimar said Victorians should be prepared for high demand at testing facilities.
"We expect it to be a busy day tomorrow … so we would ask people to please prepare, make sure you bring some water and your fuel's topped up and that you can wait for your test in some decent level of comfort."