The oral rotavirus vaccine is an oral vaccine against rotavirus infection, which is most commonly seen in infants and young children and causes rotavirus enteritis, with infants and young children between the ages of six months and three years being more susceptible. Rotavirus infection is a transmissible disease that can be transmitted through the gastrointestinal and respiratory tracts and can cause manifestations similar to those of acute gastroenteritis. Children may have severe diarrhea, fever, nausea, vomiting, and in severe cases of diarrhea, dehydration. These children must be treated promptly and the prognosis is generally good. However, in a small number of children, severe cases may lead to convulsions and even danger. Therefore, the oral rotavirus vaccine is more effective in preventing this type of disease and can be considered. In addition, in severe cases of rotavirus infection, it can even cause myocarditis or respiratory related problems. Especially in the autumn, winter or spring, it is easy to outbreak epidemic, so if you do not have the oral vaccine, you must pay attention to this season to prevent the spread.