Flu B Symptoms 2024 In Us. The infections are caused by different types of the influenza virus, flu b can be as serious as flu a. Here's what you need to know about the similarities and differences between influenza a and b, including whether their symptoms vary and how the flu shot can help prevent both.
Symptoms of influenza include acute onset of fever, cough, sore throat, body aches and fatigue. A weekly influenza surveillance report prepared by the influenza division.