Expanded protections for endangered southern resident killer whales off British Columbia's coast focus on contaminants, noise, physical disturbances and accessibility of chinook salmon, the orca's primary prey.

It's premature to talk about "immunity passports" for Canadians who have been infected with COVID-19, Prime Minister Justin Trudeau said on Saturday, April 25, 2020, because the science is unclear about whether those who have recovered from the virus are protected from catching it again.