… First Nation communities — including Buffalo River Dene Nation, Black Lake First Nation … and Sturgeon Lake First Nation — as … -19 cases in First Nations communities in Canada … active outbreaks in First Nation communities in the …… First Nation communities — including Buffalo River Dene Nation, Black Lake First Nation … and Sturgeon Lake First Nation — as … -19 cases in First Nations communities in Canada … active outbreaks in First Nation communities in the …