A substitute; a person or thing that replaces another. In HIV disease, the number of CD4+ T cells and CD8+ cells is a surrogate immunological marker of disease progression. See also CD4 (T4) or CD4+ Cells; CD8 (T8) Cells.
(19)
This site is intended for general information only. The information provided on this site does not constitute medical advice and should not be relied upon. You should not act or refrain from acting on any legal or medical matter based on the content of this site.