Article content Algoma Public Health has said it has completed its investigation of the COVID outbreak at St. Mary’s College that deemed a Grade 9 cohort and bus #55 at “high risk” earlier this month. St. Mary’s College distributed the two-page letter to parents of students at the school Thursday. We apologize, but this video has failed to load. Try refreshing your browser. Easter 'gathering' probe results remain in lockdown Back to video The letter states that those under isolation as a result of the investigation have now completed their isolation period at midnight. “Members within the household can continue to attend work and resume daily activities while following the current public health recommendations,” the letter reads.