Health experts have three days to work out how Covid spread from a traveller
Testing has linked the cases to a returned US traveller - but there is a missing link
The positive case is a man in his 50s, but he had no contact with quarantine
Restrictions are set to be lifted on Monday at 12.01am - but link must be found
He visited 14 suburbs in Sydney while infected with Covid-19 last weekend
Masks are mandatory, dancing banned and only 20 people are allowed in a home
NSW Treasurer Dominic Perrottet is self-isolating at his home after visiting a city restaurant and bakery at the same time as a positive Covid case.
Mr Perrottet was at District Brasserie and Bakery in the Chifley complex in the Sydney CBD on Friday April 30 between 11am and 12 noon - at the same time as the man in his 50s separately visited the venue.
Mr Perrottet has tested negative but will isolate at home for 14 days in case he develops symptoms.
District Brasserie (above) has been named as a venue Sydney s BBQ man visited while infectious
NSW Treasurer Dominic Perrottet (pictured with his wife and four children) is self-isolating at his home after visiting a bakery at the same time as a positive Covid case
The Sydney couple who have mysteriously tested positive to coronavirus are infected by the double mutant Indian variant of the disease.
The B.1.617 strain was identified in the subcontinent in October, with two key mutations to the outer-spike protein that helps the virus bind and enter cells.
The couple have the second of three subvariants known as B.1.617.2. Scientists are not yet sure if the strain is more infectious or more deadly than original Covid, but many fear it probably is.
The Sydney couple who have mysteriously tested positive to coronavirus are infected by the double mutant Indian variant of the disease. Pictured: A Sydney commuter
A man who tested positive for Covid-19 in Sydney visited an optometrist located below a quarantine hotel, perhaps shedding light on how the mystery infection occurred.
The positive test result on Wednesday sent shockwaves through the city because the man, who is in his 50s and lives in the eastern suburbs, had not returned from overseas, does not work in border control, health care or at a quarantine facility.
Several venues are now on alert, including a HineSight optometrist at 1pm on April 30, which is located below Sofitel Wentworth in Sydney s CBD - currently being used as a quarantine hotel.
A man who is in his 50s travelled across Sydney while infected with Covid-19
Fourteen suburbs are on alert including Double Bay, Bondi Junction and the CBD
The man does not work in hotel quarantine, airports or for the Border Force
It has since been revealed that he went to a venue beneath a quarantine hotel
Alerts for 19 venues across the city with customers told to watch for
symptoms