Two more people have recovered from the virus (290), dropping the number of active cases to 12.
Cases are considered resolved when they are 14 days past symptom onset date, do not have a fever and COVID symptoms are improving or absent, according to the health unit.
Lambton Public Health follows up daily with cases and contacts throughout their 14-day isolation period.
Locally, a total of 19,393 tests results have been processed since the pandemic began, and 25 people have died.
Bluewater Health currently has no COVID-19 patients, and no one has been treated at the hospital or tested positive for the virus there since mid-June. Currently, 23 patients are in hospital with tests pending for COVID-19 (includes pre-surgical screening).
Petrolia Town Council passed a mandatory mask bylaw for all indoor public spaces Monday night, along with neighbouring Chatham-Kent.Ontario recorded just 33 new cases Tuesday, after logging 115 new cases Monday.
Public health safety measures include staying home when sick, practicing physical distancing with others outside your social circle, use good hand hygiene, and wearing a mask if required or if physical distancing is not possible.