Of NSW’s new local cases, 103 are linked to a known case or cluster, the state’s health department says.
“Seventy-nine are household contacts and 24 are close contacts and the source of infection for 130 cases is under investigation.
“Ninety-two cases were in isolation throughout their infectious period and 21 were in isolation for part of their infectious period. Forty-seven cases were infectious in the community, and the isolation status of 73 cases remains under investigation.”
The state has recorded 4063 local cases since the outbreak began on June 16. 
“There are currently 286 COVID-19 cases admitted to hospital, with 53 people in intensive care, 23 of whom require ventilation.”
Meanwhile, Queensland on Wednesday reported 17 new locally acquired cases, up from 16 on Tuesday. Sixteen of these are linked to the Indooroopilly Delta cluster, taking that outbreak to 63 genomically-linked cases, while one new case from Cairns is under investigation. 
The Australian state’s deputy Premier Steven Miles says the Indooroopilly outbreak is now the state’s biggest since the first wave of COVID-19 early last year.