<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">AIDS</topic></authority><related type="broader"><topic>communicable disease</topic></related><variant type="other"><topic>acquired immunodeficiency syndrome</topic></variant> <note xml:lang="en"><![CDATA[ An acquired defect of cellular immunity associated with infection by species of human immunodeficiency viruses. Criteria as defined by the CDC in 1993 include a CD4-positive T-lymphocyte count under 200 cells/microliter or less than 14% of total lymphocytes, and increased susceptibility to opportunistic infections and malignant neoplasms. Clinical manifestations also include emaciation and dementia.  ]]></note></mads>