Patient's question:
My child received the attenuated Japanese encephalitis vaccine at 2:00 PM on March 21st. That evening, they started having a high fever of 39°C, but there were no other adverse reactions like coughing.Treatment history and effectiveness:
No specific treatment was administered.
Expected help:
I would like to know what caused the high fever.
Doctor's answer:
It is normal for a baby to develop a fever after receiving the attenuated Japanese encephalitis vaccine, as the attenuated vaccine actually contains inactivated viruses. Once the virus enters the baby's body, it triggers an immune response, causing the body to produce antibodies, which can lead to a fever. You don't need to worry too much. First, carefully monitor the baby's temperature to see if it rises. If the fever persists for an extended period without subsiding, then take appropriate measures. In most cases, the fever will resolve on its own relatively quickly.