EBE is not infrequent, about 10% of encephalitis in children. EBE is always present independently, which is not a complication of infectious mononucleosis(IM).

• 在儿童病毒性脑炎中EBE并不少见 ,约占 10%25 ,且多单独出现而非传染性单核细胞增多症 (IM)的一部分。