Jackson is an HLH warrior who was diagnosed at about 10 weeks old. He started to develop a fever shortly after receiving his 8 weeks vaccines. The fever persisted for about 10 days. During this time he was seen by the doctors in the clinic, and was admitted in the hospital a couple of times over those few days. Each time his blood came back even worse than the previous time. On New Year’s Eve, we took him to the ER and this time his liver and spleen were now enlarged. He was a very sick little boy and was admitted directly to the PICU. They suspected that this might be the diagnosis, but hated to jump to conclusion. Jackson was diagnosed on January 5th and began with chemo immediately after the diagnosis. We were very fortunate that it didn’t have time to spread to his spine or brain. Jackson was admitted for his BMT on April 5th, 2011. He received his life saving transplant using cord blood on April 15th, 2011. At this time, he is doing fabulous. His donor cells are now at 100%. Jackson 5 years post transplant.