My son is 7. It started with EBV in December. The doctor expected him to be better in 10 days or so. When he continued to sleep for 15-20 hours we started seeing specialists. 13 doctors later, the immunologist referred him to a neurologist. That's who put him in the diet, probiotics, etc... that was 4 months in and with in 2 weeks he was out of episode. I am not sure if he had several or one long one. He was Homebound from school the entire 2nd semester.