Is stomach flu caused by the same virus as seasonal flu?
Influenza and what most people call the “stomach flu” are different.
Influenza, or the flu, is a respiratory disease and not a stomach or intestinal disease. Symptoms of influenza include fever plus a cough and/or sore throat, feeling feverish/chills, runny or stuffy nose, muscle or body aches, headaches, fatigue (tiredness). In addition, some people may have vomiting and diarrhea, though this is more common in children than adults.
Many people use the term “stomach flu” to describe illnesses with nausea, vomiting or diarrhea. These symptoms can be caused by many different viruses, bacteria or even parasites. In children, vomiting, diarrhea, and being nauseous or “sick to your stomach” can sometimes be related to the flu.