In a startling first, a Washington state man has been infected with a strain of bird flu previously only detected in animals. The “severely ill” man was hospitalized with a high fever, confusion and respiratory distress earlier this month and confirmed to have H5N5, a subtype of avian influenza carried by wild birds such as ducks and geese. The Washington State Department of Health described the unidentified patient as being “older” and having “underlying health conditions.” The agency noted that the man has a “mixed backyard flock of domestic poultry” at his home in Grays Harbor County, in the southwest...