Epidermodysplasia verruciformis, susceptibility to, 4

Immunodeficiency-129 (IMD129) is an autosomal recessive immunologic disorder characterized by recurrent bacterial, viral, and fungal infections beginning in the first or second decades of life. Some affected individuals have increased susceptibility to certain human papillomaviruses (HPV), resulting in warts and skin lesions that do not respond to treatment, as well as opportunistic infections. Immunologic studies usually show decreased CD4+ T cells, increased effector memory T cells, and decreased naive T cells, suggesting a defect in T-cell development. Some individuals may also have decreased NK cells and B cells, as well as hypogammaglobulinemia. The phenotype is variable (Crequer et al., 2012; Zhou et al., 2024). [from OMIM]