AIDS (Acquired Immuno Deficiency Syndrome)
Human Immunodeficiency Virus (HIV). HIV stands for human immunodeficiency virus. If left untreated, HIV can lead to the disease AIDS (acquired immunodeficiency syndrome). Unlike some other viruses, the human body cannot get rid of HIV. That means that once you have HIV, you have it for life. HIV stands for Human Immunodeficiency Virus. HIV is a virus. Some viruses, such as the ones that cause the common cold or the flu, stay in the body only for a few days. Some viruses, such as HIV, never go away. When a person becomes infected with HIV, that person becomes HIV positive and will always be HIV positive. The second stage of HIV infection, the disease stage, is acquired immunodeficiency syndrome (AIDS). By rendering the immune system basically useless, the disease destroys the body's primary line of defense. Infections, cancers, and other immune diseases can then attack the body. The WHO system classifies HIV disease on the basis of clinical manifestations that can be recognized and treated by clinicians in diverse settings, including resource-constrained settings, and by clinicians with varying levels of HIV expertise and training. Human immunodeficiency virus (HIV) is a two-stage disease. A person infected with HIV can have no symptoms for years (yet will still be at risk of passing on the virus to others). HIV stands for human immunodeficiency virus. If left untreated, HIV can lead to the disease AIDS (acquired immunodeficiency syndrome). Unlike some other viruses, the human body cannot get rid of HIV. That means that once you have HIV, you have it for life. HIV disease staging and classification systems are critical tools for tracking and monitoring the HIV epidemic and for providing clinicians and patients with important information about HIV disease stage and clinical management. HIV infection is classified as stage 3 (AIDS) when the immune system of a person infected with HIV becomes severely compromised (measured by CD4 cell count) and⁄or the person becomes ill with an opportunistic infection.
https://www.aids.gov/hiv-aids-basics/hiv-aids-101/what-is-hiv-aids/ http://hivinsite.ucsf.edu/hiv?page=basics-00-01 https://www.sharecare.com/health/hiv-aids/what-stages-hiv http://www.aidsetc.org/guide/hiv-classification-cdc-and-who-staging-systems https://www.sharecare.com/health/hiv-aids/what-stages-hiv https://www.aids.gov/hiv-aids-basics/hiv-aids-101/what-is-hiv-aids/ http://www.aidsetc.org/guide/hiv-classification-cdc-and-who-staging-systems http://www.cdc.gov/hiv/statistics/surveillance/terms.html
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