With reports of the first human death from bird flu in the US, some Americans are feeling an uncomfortable flashback to the early days of Covid-19, when infectious disease experts were talking about a new virus that was sending people to the hospital with respiratory infections.

How deadly is the bird flu? The US has reported its first death from avian influenza, H5N1. Here's what to know about bird flu mortality rate and who is at risk.

The death of a Louisiana resident and a severe infection involving a B.C. teen has experts worried about the emerging threat to humans You can save this article by registering for free here. Or sign-in if you have an account.