Lambton Public Health reported 16 new cases of COVID-19 on Wednesday.
The health unit said there has been an average of 25 new infections in Sarnia-Lambton over the last week.
Since the start of the pandemic in March 2020, there have been 9,680 lab confirmed cases of the virus and 126 related deaths.
There are nine COVID-positive patients at Bluewater Health, up two from Tuesday. None of them are in the ICU.