What is a typical symptom of influenza?

High fever and body aches are hallmark symptoms of influenza, which is commonly known as the flu. This viral infection typically presents with a sudden onset of fever, chills, significant muscle and joint pain, and general malaise. The combination of high fever and body aches distinguishes influenza from other respiratory illnesses.

While loss of appetite, rash, and gastrointestinal symptoms like nausea and vomiting can occur with various infections, they are not primary indicators of influenza. Loss of appetite might happen due to general illness, but it's not specific to the flu. Rash is generally associated with viral infections like measles or chickenpox rather than influenza. Nausea and vomiting can occur in a minority of flu cases, especially in children, but it is not as characteristic as the high fever and body aches commonly seen with the virus. Thus, high fever and body aches are essential for identifying influenza, making this option the most representative of the disease’s typical symptoms.