Which of the following symptoms is NOT typically associated with influenza?

Nausea is not typically associated with influenza as one of its primary symptoms. Influenza, caused by the influenza virus, commonly presents with a sudden onset of fever, chills, headache, muscle aches, fatigue, and respiratory symptoms such as cough and sore throat. While some individuals may experience gastrointestinal symptoms like nausea or vomiting, these are not characteristic of influenza and are more commonly associated with infections such as norovirus or gastrointestinal influenza. The main symptoms of influenza focus primarily on systemic and respiratory effects rather than gastrointestinal disturbances. This understanding highlights the importance of recognizing the classic symptoms of influenza, which aids healthcare providers in making accurate diagnoses and treatment plans.