What is norovirus? The stomach bug is so contagious and it spreads easily this time of year.

Medically reviewed by Alexis Appelstein, DO Umbilical hernias, appendicitis, gastroenteritis, and peptic ulcers might cause ...

Worldwide, acute gastroenteritis causes the second greatest burden of all infectious diseases — and norovirus is the cause for many of those cases, according to research published in The Lancet ...