Rotavirus, adenovirus, and astrovirus most often infect infants and young children, but they can also infect adults. Viruses may cause viral gastroenteritis any time of the year. In the United States, norovirus, rotavirus, and astrovirus are more likely to cause infections in the winter. My Sister has One now. I Never had anything but a 24 hour Stomach bug. This comes from Contaminated Foods or Water or Even Touching something Germy and then Going in your Mouth, Maybe even your Pet Licking your face or even not washing your hands after bathroom use, etc. xxooxxoo
