The patient was experiencing "flu-like symptoms" and had "health conditions that can make people more vulnerable to illness," Wyoming's health department said. She was likely expo

A study published Thursday by the Centers For Disease Control and Prevention suggests bird flu infections in humans are being significantly undercounted in the U.S.

A new survey conducted by the Centers for Disease Control and Prevention has revealed that highly pathogenic avian influenza (HPAI) A(H5) virus infections

The patient was experiencing "flu-like symptoms" and had "health conditions that can make people more vulnerable to illness," Wyoming's health department said. She was likely exposed to the H5N1 virus through direct contact to an infected poultry flock at her home.