 Severe chronic active Epstein-Barr virus SCAEBV is a rare Epstein-Barr virus EBV or commonly known as mono or the kissing disease associated disorder. This disorder may cause chronic tiredness and fevers and sometimes be complicated by life threatening problems such as multi-organ failure, chronic ongoing pneumonia, and lymphoproliferative diseases diseases involving the lymph nodes which could eventually show up as leukemia or a tumor. The reasons for the bodys inability to control the EBV infection are still unknown and no effective treatment is currently available. 