COVID-19 outbreak at a daycare in Peterborough County involves a dozen staff cases, the region’s health unit reported Friday.During a media conference at noon, Peterborough Public Health said the outbreak declared Tuesday at the Buckhorn Day Care and Nursery School in Trent Lakes has 12 active cases: six daycare attendees and six staff members.There were 10 active cases associated with the daycare on Thursday, noted Dr.