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| '''WHO Disease Staging System for HIV Infection and Disease''' was first produced in 1990 by the [[World Health Organisation]] <ref name=WHO>{{
| | #REDIRECT [[AIDS classification]] |
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| cite journal
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| | author=[[WHO]] | title=Interim proposal for a WHO Staging System for HIV infection and Disease. | journal=Wkly Epidemiol Rec. | year=1990 | pages=221-224 | volume=65 | issue=29 | id={{PMID|11809639}} | url=http://whqlibdoc.who.int/wer/WHO_WER_1990/WER1990_65_221-228%20(N°29).pdf
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| }}</ref> and updated in September 2005. It is an approach for use in resource limited settings and is widely used in Africa and Asia and has been a useful research tool in studies of progression to symptomatic [[HIV]] [[disease]]. Most of these conditions are opportunistic infections that can be easily treated in healthy people. The staging system is different for adults and adolescents and children.
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| '''Stage I:''' HIV disease is asymptomatic and not categorized as AIDS.
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| '''Stage II:''' include minor mucocutaneous manifestations and recurrent upper respiratory tract infections.
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| '''Stage III:''' includes unexplained chronic diarrhea for longer than a month, severe bacterial infections and pulmonary tuberculosis.
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| '''Stage IV:''' includes toxoplasmosis of the brain, candidiasis of the esophagus, trachea, bronchi or lungs and Kaposi's sarcoma; these diseases are used as indicators of AIDS.
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| == See also ==
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| *[[WHO Disease Staging System for HIV Infection and Disease in Adults and Adolescents]]
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| *[[WHO Disease Staging System for HIV Infection and Disease in Children]]
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| ==Notes==
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| <references/>
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| {{AIDS}}
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| [[Category:HIV/AIDS]]
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