Lambton Public Health is reporting five more COVID-19 cases linked to Sarnia's Landmark Village.
The retirement home is now being tied to 39 cases, including nine staff and 30 residents.
Six of the 14 local deaths have been linked to the outbreak at the facility.
Overall, there are 159 COVID-19 cases across the county, an increase of nine from Wednesday. Four more people have recovered for a total of 66.
There have been 1,301 tests conducted locally, and around 88 per cent have been negative.
Bluewater Health reported Thursday that 13 patients were still in hospital with the virus, and 14 were suspected of having it with tests pending.
