Detective work via genomic testing has linked case to an overseas case from the USA on 26th April who was in HQ at Park Royal at Darling Harbour.and was moved to a health hotel on 28th April.
They still need to find the link between HQ and the 50yo man so are looking at all the places the man visited since 26th to find that person (who will likely be a asymptomatic vaccinated HQ / Transport / medical worker).
From ABC Blog: Dr Chant said they were reviewing CCTV footage to look into how transmission occurred from the traveller.
Dr Chant also said although its an Indian variant, it isnt one the current variant of concerns.
From ABC Blog:
Gladys states "What we're doing is a very precautionary response in the next three days. It's actually very proportionate. Unlike other premiers, we're not shutting down the city. We're not changing the two square metre rule. Quite the contrary. We're saying to everybody business as usual but just do a few things extra to make sure that until we identify those cases."
"If this was WA or Queensland, they would have shut down the whole city.
"They would have said stay at home, they would have said don't go about your business, we're saying the opposite, we're saying go about your normal business.
"The main bit of care is in relation to mask wearing and how many people you welcome to your home."