The number of active COVID-19 cases in Sarnia-Lambton increased to 13 Thursday morning.
Lambton Public Health reported two new infections and no recoveries in its most recent daily update.
There have been a total of 3,692 confirmed cases in the region since the beginning of the pandemic and 3,610 resolved cases.
The local death toll remains unchanged at 69.
Bluewater Health has no COVID-19 patients in hospital.