Posted 1/15/2017 7:16 AM (GMT -5)
"Stomach flu" does not exist. When discussing health-related matters it is important to be accurate to help prevent confusion and the spread of misinformation.
What most people refer to as "stomach flu" is any gastrointestinal infection, or food intoxication, caused by any number of infectious bacteria or viruses, or toxins derived from a microbe.
Such GI infections are not caused by the influenza virus which, as someone already pointed out, cause the respiratory illness, influenza, also known as "the flu."