Rotavirus vaccine, which first became available in 2006, is used to protect against rotavirus infections. It is worth noting that these infections are the leading cause of severe diarrhea among young children, and so the vaccines decrease the risk of death among them. Basically, the vaccine in question contains a weakened strain of rotavirus. This helps your baby to build up immunity, so that the next time they come into contact with rotavirus they will not get the disease. In fact, immunizing babies decreases rates of disease among older people and those who have not been immunized. Bear in mind that babies who have the Rotavirus vaccine can sometimes become restless and irritable, and some may develop mild diarrhea. And as with all vaccines, there's a very small possibility of the rotavirus vaccine causing a severe allergic reaction called anaphylaxis, which in turn is a potentially life-threatening allergic reaction that can occur within seconds or minutes of exposure to something you're allergic to, such as peanuts or bee stings. Remember that Rotavirus vaccine is not indicated for women of childbearing age and should not be administered to pregnant females. Besides, the vaccine can be given to babies with or without food.