The Rotavirus and Adenovirus stool test are used for the qualitative detection of rotavirus and adenovirus in human feces specimen. The rotavirus test is a stool test used to diagnose a rotavirus infection. Rotavirus affects the intestines and causes vomiting and diarrhea. This infection is especially common in young children, but it can affect adults, too. A rotavirus infection causes a condition called viral gastroenteritis.