As mentioned above, because the HIV virus has the ability to immobilize the immune system, the most detectable complication of this disease is that patients become more susceptible to infection. There are many types of infections that are susceptible to HIV sufferers, for example pneumonia, candidiasis, tuberculosis, cytomegalovirus, cryptococcal meningitis, toxoplasmosis, and so on. Not just infection, the risk of sufferers to experience malignancy (such as lymphoma, Kaposi's sarcoma) and multiorgan disorders, such as nerves, kidneys, liver, and so on will be even greater.