AN indoor pool, a Hunter court and a Lake Macquarie medical centre have been included in the region's latest COVID-19 exposure sites.
Kahibah Public School will also reopen on Wednesday after a positive test in the school's community, the NSW Department of Education has confirmed.
"Students and staff identified as close contacts have been notified and asked to self-isolate for the required period and follow the NSW health advice and protocols," the department said.
Hunter New England Health on Tuesday night confirmed that people who attended several venues during specific windows were casual contacts, meaning they had to get tested and isolate until the receive a negative result.
NSW Health would contact any close contacts directly, Hunter New England Health said.
The sites include Singleton Gym and Swim's 25-metre indoor pool and its adjoining amenities on Civic Avenue.
The exposure was on Friday October 1 and Tuesday October 5 from 5am to 6.20am both days.
The Windale Community Medical Centre on Lake Street was also exposed on multiple days.
Health authorities have flagged windows on Wednesday September 29 (11.55am to 12.45pm), Thursday September 30 (3.35pm to 4.10pm) and Wednesday October 6 (2.05pm to 2.30pm).
Kurri Kurri Local Court was exposed on Tuesday October 5 from 9.20am to 10am while Medowie Medical Centre on Waropara Road had an exposure on Thursday October 7 from 2.35pm to 3.10pm.
Marli Accommodation Services (Currency Lass Accommodation) in Maitland's High Street was also flagged for a single window spanning from Tuesday October 5 until Saturday October 9.