HLH is considered a rare disease.  Because of its rarity, it lacks the attention, study, and funding that is needed for physicians to fully understand it, let alone know how to treat it.  Due to the inflammatory nature of HLH, caused by the cytokine storm that forms as a result of an overreacting immune system, HLH is life-threatening.  Without treatment, it is often fatal.  With treatment, the survival rate is still fairly low, and the treatment journey is long, difficult, and very lonely.  It affects the entire family.  Many patients or caregivers are forced to give up their jobs to endure harsh chemotherapy treatments, long and scary hospital stays as they undergo a bone marrow transplant (the only known cure for primary HLH), and countless doctor's appointments for long-term monitoring.  These patients and families need to know that they are not alone.  They need their voice to be heard, and they need support to make it through the journey.  HLH Heroes Foundation aims to not only raise awareness for this rare disease but also to be the support system needed when these individuals and families have nowhere to turn.  Your support can help our organization provide emotional, financial, and educational support to a community that really needs it.