The coronavirus case that has sent Perth into lockdown for the weekend was "out and about" and doing "tourist things", according to health authorities.
So naturally, contact tracing is underway to find out exactly where he went.
If someone has been at any of the locations at the corresponding times, they are being told to get tested and isolate until they have a negative result, while also monitoring for symptoms.
Here are the locations of interest that have been identified so far.
St Catherine's on Park, Crawley
It appears the man in his 50s was staying at the serviced apartments near the University of Western Australia.
The time period of concern for the Heim building there is 12:01am on April 18 to 11:59pm on April 21.
The building's dining hall is of particular concern from 7:00am to 9:00am on April 19 and April 21.
Star Family Medicine Practice, Canning Vale
The practice on Bannister Rd in Canning Vale is of concern from 9:00am to 11:00am on April 23.
Terry White Chemmart, Kardinya
This is of concern from 7:10pm to 8:30pm on April 22.
DB Dental, Applecross
Also on April 22, the man attended the Sleat Road clinic at 884 Canning Highway from 8:00am to 6:00pm.
Leisurefit Aquatic Centre, Booragoon
This swimming pool appears on the list twice — on April 17 from 3:30pm to 6:00pm, and April 21 from 5:30pm to 7:30pm.
Southlands Shopping Centre, Willetton
Gilbert's Fresh Markets, Coles and BankWest are of particular interest, between 3:00pm and 3:30pm on April 21.
Qantas domestic terminal, Perth Airport
Terminals 3 and 4 of the airport are of concern from 11:00am to 1:00pm on April 21.
City China Garden, Northbridge
The Chinese restaurant is of concern from 5:00pm to 8:00pm on April 20.
Good Fortune Roast Duck House, Northbridge
A different Chinese restaurant is of concern on April 19 from 5:00pm to 8:00pm.
Fortune Acupuncture Chinese Medical Clinic, Subiaco
The man attended the acupuncture clinic from 1:30pm to 3:00pm on April 19.
BP Service Station, Kardinya
The man visited the petrol station between 11:00am and noon on April 19.
Fortune Five Chinese Restaurant, Northbridge
A third Northbridge Chinese restaurant is of concern on April 18 between 5:30pm and 7:00pm.
Kitchen Inn, Kardinya
The man had lunch at this Malaysian restaurant on April 18, from noon to 2:00pm.
Brentwood Deli, Mount Pleasant
The Mount Pleasant deli is of concern from 8:30am to 9:30am on April 18.
Anything La Corner, East Victoria Park
The earliest location on the list is a different Malaysian restaurant, on April 17 between 5:30pm and 8:00pm.
