FORT GRATIOT TOWNSHIP, Mich. – A restaurant in St. Clair County has been listed as a potential coronavirus exposure site. Patrons who visited the restaurant anytime between Oct. 18-22 are encouraged to self-monitor for COVID-19 symptoms for 14 days following their visit. How easily the virus spreadsHow easily a virus spreads from person-to-person can vary. Some viruses are highly contagious (spread easily), like measles, while other viruses do not spread as easily. Prevention & TreatmentThere is currently no vaccine to prevent coronavirus disease 2019 (COVID-19).