neutropenia neonatal alloimmune neutropenia https://github.com/monarch-initiative/mondo/issues/6746 https://github.com/monarch-initiative/mondo/issues/6747 https://www.malacards.org/card/neonatal_alloimmune_neutropenia Orphanet:464370 A rare acquired neutropenia characterized by isolated neutropenia in a newborn due to maternal alloimmunization against human neutrophil antigens (HNA) inherited from the father and present on fetal neutrophils, and subsequent increased breakdown of the latter. The condition is self-limiting and resolves after several weeks. It usually presents with only mild bacterial infections or may even be asymptomatic, although severe forms with sepsis and fatal outcome have also been reported. MONDO:0018739 MEDGEN:543869 SCTID:14333004 UMLS:C0272176 GARD:0021929