People with AIDS, in the late stages when the disease progresses to the symptomatic phase, due to severe immunodeficiency, will experience a series of related opportunistic infections and opportunistic tumors. There will also be manifestations of AIDS wasting syndrome, at which point there will be a noticeable weight loss and emaciation. During the latent phase of AIDS, also known as the asymptomatic period, the weight might not necessarily decrease noticeably. The diagnosis of AIDS, once confirmed, requires systematic and standardized antiretroviral therapy.