Washington state health officials have confirmed several cases of human bird flu, marking the first documented infections in the U.S. in nine months. The latest reports include a unique strain of avian influenza that has previously only been identified in animals. One resident has been hospitalized, while another is undergoing investigation as a potential case. In addition to human cases, bird flu has been detected in local avian populations, prompting health officials to urge poultry owners in Whatcom County to take precautionary measures. Concerns continue to grow as sewage overflow incidents in the area further complicate public health efforts.