How contagious is a baby with stomach virus and diarrhea symptoms?

Quite. Acute viral gastroenteritis generally is highly communicable through bodily secretions. In day care centers this will spread as rapidly as water through a sieve.

Related Questions

How contagious is the stomach virus?

Stomach virus. There is not one specific virus capable of producing acute gastroenteritis, and when it occurs it is communicable generally by the fecal/oral route. Somebody with the virus handles your food or water and you become infected. Read more...

Is it possible to not catch a contagious stomach virus from someone you live with (don't share a room)?

YES. Most of these viruses (eg: Norovirus) LIVE ON SURFACES thus HAND WASHING and NOT SHARING dishes , bathroom supplies are the only way to avoid the vurus. BLEACH clean all surfaces touched by the infected person! Hope this helps Dr Z. Read more...