Covid-19Regional Covid-19NewsRegional News Thunder Bay – TEN New Cases of COVID-19 Reported By NetNewsLedger - April 16, 2020 1477 THUNDER BAY – The Thunder Bay District Health Unit (TBDHU) is reporting 10 (ten) new COVID-19 cases in residents in the TBDHU Region. Three of the cases are related to the Lac Des Iles mine workers. Two are from a First Nation community.