How to determine if a child has a viral fever

To diagnose viral fever in a child, the first step is to perform a pediatric examination to determine whether the child has a viral fever. Then, collect a blood sample from the child and conduct blood tests to check for signs of viral infection. Use nucleic acid testing to confirm whether the child is infected with a virus, and identify the specific virus type to assess the condition. Based on the child's symptoms, test results, and clinical experience, determine whether the child has viral fever.