Children are at risk of relapse after EBV infection. EBV infection is a relatively common infectious disease in children, which can be transmitted through saliva, droplets, etc. After infection, children may show fever, rash, liver and spleen lymph node enlargement and other infectious mononucleosis, after recovery, the EBV virus can be latent in the body for a lifetime, and when the body immune system declines, the recurrence of EBV infection may occur. EBV infection in children is a self-limiting disease, most of them have a good prognosis, but a few may cause complications due to the severity of the disease. When your child is suspected of having EBV infection, you should bring your child to the pediatrician in time for timely intervention and treatment.