A COVID-19 outbreak has been declared on the Continuing Care Unit at Charlotte Eleanor Englehart Hospital (CEE) in Petrolia.
Bluewater Health, in consultation with Lambton Public Health, made the announcement Tuesday.
Fewer than five patients have tested positive for the virus.
Bluewater Health said patients on the unit are allowed one designated visitor for the term of the outbreak, with special exceptions permitted for palliative patients.
Bluewater Health currently has seven COVID-positive patients between the Sarnia and Petrolia hospitals.