Yes we have no immunity to it and it’s infection rate is high
Thankfully it isn’t bird flu though death rate 60%
Yes, bird flu was lethal. Thankfully, it never mutated to passing from human to human, it only ever came from infected birds.
With coronavirus, its mortality rate is much lower but it's far more infectious, so is causing many more deaths worldwide.
For most people it will be a minor illness, but because of that they will be going about their daily lives, thinking it's just another seasonal cold, whilst passing it on to others who are elderly and/or vulnerable.