Stomach Flu Symptoms 2024 Adults. Flu can cause mild to severe illness, and at times can lead to death. People who have flu often feel some or all of these.

What are the symptoms of gastro, food poisoning and the stomach flu? Norovirus, sometimes referred to as a stomach flu or stomach bug, is a common virus that’s highly contagious and spreads through tiny particles of feces or vomit and.