The woman was exposed to poultry in a backyard flock that tested positive for H5N1, the CDC report said, adding that she remained hospitalized at the time of the report.
A man in Mercer county, Ohio, was infected while depopulating, or killing, H5N1-positive poultry at a commercial facility, according to a statement from the Ohio department of health.
So both very likely caught it from poultry, as opposed to other people. As we see more cases, though, it's only a matter of time before it mutates and becomes capable of human-to-human transmission.
Also:
“I am very worried about H5N1 in patients that are being treated in hospitals where there are also many seasonal flu patients because this creates opportunities for reassortment, which could potentially produce a pandemic-capable H5N1,” Rasmussen said.
I hadn't even considered reassortment with the seasonal flu. Yet another thing to keep me up at night.