This really depends upon the factors like the age of the person, the strain of the virus infecting the person and the immune capabilities of the person that is infected. The virus should only stay in the system for about 3 days time.
It all comes down to your immune capabilities. Under normal conditions, the flu should only last in your system for about 3-5 days and not more.
The contagious period depends upon the type of virus that you are infected with.Moreover, if you have a stomach flu you are supposed to be contagious for about three days .Also, in some cases, especially children are supposed to be contagious for around a week or two.
There is no saying for sure where you can catch a stomach bug. You can catch it anywhere. The most common places are computer Keyboard, TV remote etc.
You usually have stomach flu for about 1-3 days. However the symptoms associated with stomach flu could last from a week to 10 days. In immunosuppressed people it could last longer.
IF you are not immuno-suppressed or do not have a medical condition, the flu virus should only stay in your system for about 3-5 days. However people have reorted it to last a week or more.
Dirrhea with a flu virus can last anytime between 3-5 days. This is really a function of your immune capabilities and the strain of the virus that has infected you.
In normal conditions the gastric virus has the potential to last in the body anytime between 1-5 days. Depending upon the strain of the virus and the immune capabilities of the person being infected it could stay for a shorter or a longer period of time.
It usually takes about a couple of days before you start showing the symptoms of stomach virus. This could vary from person to person and is also dependent on the factors like age of the person and the immune capabilities.
During stomach bug its important to rest the stomach and intestines.Avoid having solid foods and stick to clear liquids. You may start eating soft bland foods a little later when you have not vomited for several hours. Soda crackers, toast, plain noodles, gelatin, eggs, applesauce, and bananas are good first choices. You may start eating these foods again in 3 days or so, when all signs of illness have passed.