virus does not cause disease in healthy people. Because the virus remains in the body for life, it can cause disease if the immune system becomes severely damaged or suppressed by drugs. While CMV can infect most organs of the body, persons with AIDS are most susceptible to CMV retinitis (disease of the eye) and colitis (disease of the colon).


Also known as stavudine. An antiretroviral drug in the class of nucleoside reverse transcriptase inhibitors (NRTIs). Used to treat HIV/ AIDS.


An antimicrobial drug. Used to prevent Pneumocystis carinii pneumonia in patients intolerant to use of sulfa-containing drugs. Also used to treat leprosy, an infectious disease caused by Mycobacterium leprae.

Dual Therapy:

The use of two drugs to treat a disease such as HIV/AIDS.


An antiretroviral drug in the class of nonnucleoside reverse transcriptase inhibitors (NNRTIs). Used to treat HIV/AIDS.


A disease that spreads rapidly through a demographic segment of the human population, such as everyone in a given geographic area; a military base, or similar population unit; or everyone of a certain age or sex, such as the children or women of a region. Epidemic diseases can be spread from person to person or from a contaminated source such as food or water.


The branch of medical science that deals with the study of incidence and distribution and control of a disease in a population.


The internally coded, inheritable information carried by all living organisms. This stored information is used as a blueprint or set of instructions for building and maintaining a living creature. These instructions are found within almost all cells (the internal part), they are written in a coded language (the genetic code); they are copied at the time of cell division or reproduction and are passed from one generation to the next (inheritable). These instructions are intimately involved with all aspects of the life of a cell or an organism. They control everything from the formation of protein macromolecules, to the regulation of metabolism and synthesis.

Gross Domestic Product:

A measure of the output produced by factors of production located in the domestic country regardless of who owns these factors.

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