A deadly bird flu virus that was made transmissible in mammals, touching off public fears of a pandemic, is not as contagious as people had been led to believe.
I note in particular:
"In addition, he [Ron Fouchier] said, if the ferrets were previously exposed to a run-of-the-mill seasonal flu, they were immune to the bird flu."
But this too:
"...a member of the biosecurity board, warned that ferrets were not a perfect model for what would happen in humans, and that it was impossible to tell how virulent or contagious the new virus would be in people."
So first ferrets show how lethal the virus will be - and then they don't?? Some people want it all ways....