On July 29, 2024, a United Airlines flight from Houston to Boston became the scene of a health emergency when United Airlines passengers sick and crew members began to feel ill with symptoms like nausea and vomiting. The flight, United Airlines 2477, was diverted to Washington Dulles International Airport, where it landed under a "biohazard" declaration. This situation, although resolved without severe consequences, underscores the importance of robust health protocols and swift response from airline crews to ensure passenger safety.