The Middlesex-London Health Unit (MLHU)added 17 more COVID-19 cases and 12 recoveries to close out the workweek on Friday. That brings the total number of cases to 12,916 with 83 active cases, 12,602 recoveries and 231 deaths.The most recent deaths were reported July 30, involving a man in his 50s and a man in his 60s.