Hmmm it was kinda occured concurrently?!?! I had EBV when I was 18, developed 'post-viral syndrome', had vaccinations during 4 years of Uni, starting working FT, relapsed 2 years later.
In year prior to relapse also had gardasil vaccine & seasonal flu shot. Probably recurrent virus/swine flu & prolonged stress caused my relapse (to ~35%)