“Whether this novel H5N9 virus will cause human infections from its avian host and become a pandemic subtype is not known yet,” www.theguardian.com/us-news/2025...
theguardian.com
First outbreak of rare bird flu strain reported at California poultry farm
Discovery of H5N9 came alongside detection of the more common H5N1 on the farm, leading to 119,000 birds’ deaths