Pentavalent rotavirus vaccine refers to pentavalent rotavirus vaccine, which is required to be vaccinated but is an oral medication that prevents rotavirus diarrhea. Pentavalent rotavirus vaccine belongs to Class II vaccine because, after vaccination, pentavalent rotavirus vaccine can stimulate the body to develop immunity against a variety of rotaviruses, thereby preventing rotavirus-induced diarrhea or gastroenteritis. Therefore, pentavalent rotavirus vaccine is required to be vaccinated but it is an oral medication, and not by subcutaneous or intramuscular injections, etc. The target recipients of pentavalent rotavirus vaccine are 2 months to 5 years old. Pentavalent rotavirus vaccine is intended for infants and children aged 2 months to 3 years. People with a history of intussusception, acute exacerbation of a chronic disease, or fever should not receive this vaccine. In addition, some children may experience adverse reactions such as vomiting, diarrhea, cough, runny nose, and fever after vaccination. All in all, parents can voluntarily vaccinate their infants and children at their own expense after consulting with their doctors, and if they experience any obvious discomfort after vaccination, they should go to the hospital in time for consultation.