Bluewater Health is reporting its first COVID positive patient since June 15.
Chief of Communications Julia Oosterman said the 61-year-old man is not from Sarnia-Lambton.
She said the patient was admitted on Monday and his condition continued to decline. He has since been admitted to the Intensive Care Unit (ICU).
"When any COVID positive patient comes in we have to first of all identify their medical acuity, how sick they are," said Oosterman. "Are they able to go to what we use to have was a COVID unit, we also have an ICU and we also have a kind of in-between unit called Med-T. In this case, the patient is in ICU and they're isolated."
Oosterman said the patient was in self-quarantine prior to being admitted to hospital.
Late last week, the City of Sarnia's Emergency Management Office said there were five positive cases, and 14 close contacts on a Montreal-based ship at Sarnia Harbour.
Medical Officer of Health Dr. Sudit Ranade said the cases would not be included in Sarnia-Lambton's COVID numbers, because the primary residences of the infected individuals were not in Lambton County.