State officials in recent days reported the deaths of three more New Canaanites with coronavirus disease, new data show, and the town is seeing a sharp rise in confirmed COVID-19 virus cases. The town’s cumulative total of 845 cases reported Monday is up 27 from Friday’s report by the Connecticut Department of Public Health. The DPH also is reporting 39 deaths for New Canaan in its most recent COVID-19 data tracker, up from 36 one week ago. Municipal officials said last week that most new cases are young adults and middle-aged parents infected through small gatherings over the holidays. A recent rise in cases among New Canaan High School students prompted district officials this week to pull back for now on the number of students attending in-person at the Farm Road school at one time.