It’s happened a handful of times around the world, passing from livestock to human. It hasn’t yet ever passed from human to human, fortunately, but contact with infected livestock (or, potentially, drinking infected milk) is how a virus might evolve to better infect humans.
It’s happened a handful of times around the world, passing from livestock to human. It hasn’t yet ever passed from human to human, fortunately, but contact with infected livestock (or, potentially, drinking infected milk) is how a virus might evolve to better infect humans.
Handful of cases only in the US. Globally there were around 900 cases to date (starting 2003).