I think Crossroads did contain some 24 hour further transmission. I think one example was the staff member who got it from patient 0 and then passed it on to others the next day. I think this was the explanation for the multiday period for the Crossroads exposure site as the staff member worked multilpe days subsequently..
Thank you.
So superspreading event on 3 July at Crossroads, and also at the 6 people Freight company during the day who also went to dinner...
After a bit of hunting I found this:
16 July
While the Headline was:
Fears of further spread as Crossroads Hotel virus cases become infectious within a day
What was contained in the article was:
NSW Chief Health Officer Dr Kerry Chant said several of the 34 cases from the Crossroads cluster had developed their COVID-19 symptoms incredibly fast.
She said while the incubation period for COVID-19 is usually within 14 days, "people have developed the symptoms, more towards the one day period than the 14[days]".
No final Crossroads report seems available and looking at the daily reports in the that period shows theories and cases evolving. But the least I can find (I may have missed something) is a 2 day transmission as the staff member that I assume you meant who was present when the Vic Superspreader was there on 3 July when a large number of people were infected, and was also there when another individual was infected on 5 July and so was presumed to be the source..
17 July
This brings the number associated with the cluster to 42. This includes 14 who attended the hotel on 3 July, one who attended on 5 July, and 27 who are linked to the cluster but who did not attend the hotel on 3 July.
From 12th July
The teenage worker, a close contact of the worker, a Sydney woman in her 40s and a Victorian man in his 20s who both had dinner at the pub on July 3 have all tested positive.
NSW Chief Health Officer Dr Kerry Chant said about 600 people visited the hotel on July 3.
The staff member was also working that night and worked "subsequent days" at the pub, Dr Chant said.