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Medical
Pediatrics
Hemophagocytic Lymphohistiocytosis (HLH)
Triggers, Hemophagocytic Lymphohistiocytosis (HLH)
Viral
Epstein-Barr virus
Infectious Monucleosis (IM)
Dx, Infectious Monucleosis (IM)
EBV-specific ABs
nuclear Ag (EBNA) - IgG
Parents
EBV-specific ABs
Children
Late, 6-12 Wks after Onset and Thus Represent Previous Exposure if Present Early in the Illness