Diarrhea and when are you contagious?

[LionsandBears]

It depends on why they have the runs. It could be from something they ate, in which case did you eat the same thing? It could be from a contagious disease, in which case you need to know what it is to understand the incubation period. It could be from drinking lots of alcohol, in which case how much did you drink

I'm sure someone with a medical background could provide more accurate information.

[Olive]

its my friend and her 8 month old with the runs, the kids weren't there so just adults, im hoping they washed hands properly!!
Det she was fine saturday, got it yesterday, im worried because im working the next 4 days!