Figure 1: Routine EEG showing generalized slowing with absent PDR

Intravenous Acyclovir was added to cover for possible herpes meningoencephalitis. The CSF panel came back later, and EBV DNA was detected. The central nervous system viral panel, bacterial meningitis panel, and other micro-organism panels were all negative (Table4 ).

The acid-fast bacilli (AFB) stain and mycobacterium culture were also negative. He was diagnosed with viral meningoencephalitis due to EBV infection.