CD4 counts show how strong your immune system is; lower counts mean a weaker immune response. The CD4 percentage shows what part of your white blood cells are CD4 cells and helps check how strong your ...

Living with HIV means becoming fluent in a language of numbers that might seem confusing at first but actually hold the key to your health and future. Two numbers in particular – your viral load and ...

A panelist discusses how CD4 counts serve as measures of immune system status that typically increase by about 200 in the first year of antiretroviral therapy. Although there can be laboratory ...

What Is the CD4:CD8 Ratio Test Used For? CD4 and CD8 are two types of white blood cells in your blood. White blood cells help your body fight infections. If you have HIV infection, your doctor may use ...

How quickly an HIV patient's immune system deteriorates may not affect the outcome of the illness, a study has found, and this could help change current guidelines for treatment of the disease. There ...

CD4+ T cells, or helper T cells, are one type of lymphocyte that helps coordinate the immune response against infection and disease. They interact and activate other cells in the immune system. The ...

Idiopathic CD4 lymphocytopenia (ICL) is a clinical syndrome that is defined by CD4 lymphopenia of less than 300 cells per cubic millimeter in the absence of any primary or acquired cause of ...

Heterosexuals with HIV have lower CD4 counts at diagnosis than their gay and bisexual male peers, according to an analysis of more than 300,000 people living with HIV globally. "It was quite a ...