Immunodeficiency 68, also known as myd88 deficiency, is related to bacterial susceptibility due to tlr signaling pathway deficiency and immunodeficiency 67. An important gene associated with Immunodeficiency 68 is MYD88 (MYD88 Innate Immune Signal Transduction Adaptor). Affiliated tissues include nk cells and t cells, and related phenotypes are delayed umbilical cord separation and recurrent meningitis