Active COVID-19 cases are defined as people who have tested positive for COVID-19, are in isolation and are being clinically monitored by NSW Health. Cases are considered active for 14 days after their symptom onset date. Cases who have been hospitalised are considered active until they are discharged.
Cases with an unknown source mean there are some people with COVID-19 who do not know where or how they were infected. This shows there are people infected with COVID-19 in the community who have not been diagnosed and is the reason why testing is critical. Read more about testing advice and
areas of increased testing.