An outdoor domestic cat in Washington has died after testing positive for H5 avian influenza, officials said. It is the first confirmed case in the state linked to exposure from an infected wild bird. The Washington State Department of Agriculture said on Tuesday that testing confirmed the presence of highly pathogenic avian influenza H5, commonly known as bird flu, in a cat that died in Grant County. The Grant County case is the first confirmed domestic cat infection in the state associated with exposure to an infected wild bird. The case comes as Washington continues to monitor avian influenza risks following a fatal human infection reported last year.