ABSTRACT
Empirical antiviral agents should be started. • HSV: Acyclovir IV 10 mg/kg every 8 hours for 21 days reduces mortality
from 60-80% to less than 25%. • Arboviruses: There is no specific treatment for encephalitis caused by
an arbovirus. Clinical severity varies between arboviruses; Japanese B encephalitis has 20% mortality.
