Note: this site last updated in 2006
An article from "The Molecules of HIV" (c) Dan Stowell
When monitoring the progress of infection in an infected person, we need to use tests that can give us quantitative results: numbers rather than just a yes/no answer. There are two main indicators used to measure HIV progression:
Some cheaper / less technological markers are used in developing countries such as total lymphocyte count and change in body mass, but HIV viral load and CD4+ cell count are the "gold standard". Since the tests are quite expensive it is important for scientists to develop cheap, easy-to-use tests which can be used in developing countries etc.