which virus cause cholera in human???????

It is caused by a specific bacterium, Vibrio cholerae. When an adequate quantity of the bacteria has passed into the stomach in food they accumulate and begin to produce toxins in the body. The cholera toxin has the unpleasant ability to affect the cells of the gastrointestinal tract so that the affected person doesn't just get ordinary diarrhoea, but also starts to lose very large quantities of fluid. It is this fluid loss that can be very serious. Here are some tips :- Take only boiled water or water that has been sterilised or treated in another way. Hot coffee and tea, fizzy water are usually safe enough to drink. Boil unpasteurised milk before you take it. Avoid ice cubes in drinks. Food must be properly prepared and still hot when it is served. Avoid raw fruit and vegetables, unless you peel it yourself. n' also raw fish and shellfish.

I think you should consult a doctor for all your discussions.