Immunodeficiency 28, also known as ifngr2 deficiency, is related to crimean-congo hemorrhagic fever and zika fever. An important gene associated with Immunodeficiency 28 is IFNGR2 (Interferon Gamma Receptor 2), and among its related pathways/superpathways are Innate Immune System and TGF-Beta Pathway. Related phenotypes are immunodeficiency and recurrent mycobacterial infections