What about the millions of workers who cook burgers and handle large amounts of raw meat on a daily basis, then rub their eyes or noses? These are probably thousands of daily opportunities for the virus to jump species and attack human lung cells.
Compared to the chances of infection followed by human-to-human mutation in a small rural community where someone is exposed to sick birds and becomes a dead-end case, we are entering territory where the odds of that deadly mutation are orders of magnitude higher, and compounding daily.
I said a month ago that June 15th will be day zero for this to enter public consciousness with a sustained human chain of transmission and high mortality. I'm still standing by that date give or take a week.