Flu A 2024 Symptoms

Flu A 2024 Symptoms. Flu symptoms usually start with a runny nose, sneezing and sore throat, like a cold. Influenza viruses are different from the stomach flu viruses that cause diarrhea and vomiting.

Flu, also called influenza, is an infection of the nose, throat and lungs, which are part of the respiratory system. They usually come more suddenly than cold symptoms.