Furthermore,

THIS is what was said of the last rotavirus vaccine, since removed from the market, after agencies in the UK authorized its use:

After administration of RotaShield(R), most adverse reactions observed are regarded as minor. (WTH?) In clinical trials, the most common adverse event associated with RotaShield(R) (when compared with placebo) was fever after the first dose. Administration to infants with persistent diarrhea or vomiting or to those who are known or suspected to be immunocompromised is contraindicated. (that means if your child's immune system is compromised in ANY way, DON'T DO IT, PEOPLE!) RotaShield(R) should not be given to infants who are hypersensitive to latex or to any component of the vaccine, including aminoglycosideantibiotics, amphotericin B or monosodium glutamate. (okay - do you know much about MSG? DO you want your infant having it?) RotaShield(R) does not prevent infection with rotavirus but does reducethe severity of disease should infection occur.

It doesn't even prevent your child from getting the disease! It simply "lessens the severity" - you as a parent can do the same thing, without making your child eat MSG or latex, simply with good nutrition.