2013, Number 2
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ABSTRACTThe main consequence of persistent replication of the human immunodeficiency virus is the gradual reduction of CD4 positive T lymphocytes, what eventually leads to the loss of immunological competence. The CD4 positive T lymphocytes count by means of flow cytometry is considered an essential part in medical attention and a parameter to identify the disease as well as a useful guide to clinical treatment. Numerous factors, besides the infection by the human immunodeficiency virus, can influence in the CD4 positive T lymphocytes. The changes in this parameter, generated by these factors, do not indicate real modifications in the immunological status of the patient and should be interpreted with caution.
Loutfy MR, Genebat M, Moore D, Raboud J, Chan K, Antoniou T, et al. A CD4+ cell count <200 cells per cubic millimeter at 2 years after initiation of combination antiretroviral therapy is associated with increased mortality in HIV-infected individuals with viral suppression. J Acquir Immune Defic Syndr. 2010;55:45-9.