functional obsolescence. Impairment of the usefulness of a device or equipment due to a design defect, or due to its inability to be upgraded or modified to serve the user's current needs.efinition. Impairment of the usefulness of a device or equipment due to a design defect, or due to its inability to be upgraded or modified to serve the user's current needs. For example, a relatively new computer becomes functionally obsolete if it cannot run the latest program or peripheral the user wishes to use.
Current US DHHS guidelines (published April 8, 2015) state: 1  Antiretroviral therapy (ART) is recommended for all HIV-infected individuals to reduce the risk of disease progression. 2  ART also is recommended for HIV-infected individuals for the prevention of transmission of HIV.
What is antiretroviral treatment? Antiretroviral treatment (also known as antiretroviral therapy or ART) are the drugs that treat HIV. Many people living with HIV are taking treatment and staying healthy as a result. Current treatment for HIV is not a cure for HIV, but it can keep HIV under control very effectively. How does antiretroviral treatment work?