{{ safesubst:#invoke:Unsubst||$N=Medref |date=__DATE__ |$B= {{#invoke:Message box|ambox}} }} Adult-onset immunodeficiency syndrome is a provisional name for a newly diagnosed immunodeficiency illness. The name is proposed in the first public study to identify the syndrome.<ref>{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref> It appears to be chronic and non-contagious, affecting mainly people of Asian descent aged around 50.<ref>{{#invoke:citation/CS1|citation |CitationClass=news }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Cases first started appearing in 2004, primarily in Thailand and Taiwan.