Question
Within four hours after vaccination, if an infant stops breastfeeding, what adverse reactions might occur after receiving the sugar pill?
Answer
After receiving the sugar pill, most cases are safe, but a small number of cases may experience mild adverse reactions such as fever, nausea, vomiting, or rash. In rare cases, children may have diarrhea, usually with yellow, loose stools of varying frequency. As for breastfeeding, although breast milk contains antibodies against viruses that may neutralize the vaccine virus, this does not affect the efficacy of the sugar pill. In fact, during a potential polio outbreak, administering a large number of trivalent inactivated and homologous vaccines within a short period can effectively control the epidemic and reduce the incidence rate. Therefore, stopping breastfeeding within the first four hours after vaccination can help improve the effectiveness of the vaccine.