South Korea confirmed H5N9 highly pathogenic avian influenza at a layer farm in Ganghwa, Incheon, on November 12. The farm housed about 48,000 laying hens, and authorities restricted access, began culling, and imposed a temporary movement standstill after the confirmation. Twenty-eight poultry farms within a 10-kilometre radius were designated for detailed testing and movement management, making this the fourth confirmed case reported that month.