ABSTRACT
Human immunodefi ciency virus type-1 (HIV-1) infection is the most common cause of acquired immune defi ciency. The virus infects CD4+ leukocytes and ultimately leads to a profound CD4+ T-cell lymphopenia. The progressive decline in CD4+ T cells is associated with the increased risk of HIV-associated diseases including opportunistic infections, wasting, and death.1-3 Flow cytometry plays a dominant role in the characterization and monitoring of patients with HIV-1 infection.
