What is Idiopathic CD4+ Lymphocytopenia? Idiopathic CD4+ lymphocytopenia (ICL) is a rare immunodeficiency disorder characterized by low levels of a specific type of white blood cells called CD4+ T cells. CD4+ T cells, also known as T helper cells, are a subtype of lymphocytes (a type of white blood cell) that help coordinate both the innate and acquired immune system responses. In ... https://social-lyft.com/story8061810/rise-the-of-software-rental-services-and-their-applications