There are more than 4,600 active cases in Calgary and more than 5,400 active cases in Edmonton. Alberta Health says the median time between identifying a positive case and notifying close contacts is between seven and 10 days. Alberta Health Minister Tyler Shandro is defending the province's COVID-19 tracing app despite revelations it has tracked just 19 cases since the spring. It also surpassed 10,000 active cases for the first time — the number of active cases now sits at 11,274. (Evelyne Asselin/CBC)Here is the regional breakdown of active cases reported on Sunday:Calgary zone : 4,614, up from 4,394 reported on Saturday.

Source: CBC News November 22, 2020 18:56 UTC