CLINICAL MANIFESTIONS A Prodrome(1-2 week) 1. Fever, fatigue, malaise, myalgia, drowsiness, headache, vomiting 2. Mental status changes 3. Focal neurologic signs are absent 4. CSF abnormity 1212 CLINICAL MANIFESTIONS A. Prodrome (1-2 week) 1. Fever, fatigue, malaise, myalgia, drowsiness, headache, vomiting 2. Mental status changes 3. Focal neurologic signs are absent 4. CSF abnormity