Apr 15, 2025 · A CD4 count tells a provider how many T-cells are in a small amount of blood. Providers use the results to stage HIV infections and monitor antiretroviral therapy.

In molecular biology, CD4 (cluster of differentiation 4) is a glycoprotein that serves as a co-receptor for the T-cell receptor (TCR). CD4 is found on the surface of immune cells such as helper T cells, …

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Jul 18, 2013 · For people with HIV, CD4 count and viral load are important indicators of health status. Learn what they measure and how they affect HIV treatment plans.

Nov 11, 2024 · The CD4 count is a test that measures how strong your immune system is. Find out how it helps your doctor make HIV and AIDS treatment decisions.

Dec 19, 2025 · The CD4 percentage shows what part of your white blood cells are CD4 cells and helps check how strong your immune system is. A CD4/CD8 ratio greater than 1 means a healthy immune …

CD4 cells are a type of white blood cell that circulates throughout the body in the blood. They're also called CD4 T lymphocytes or "helper T cells." That's because they help fight infection by triggering …

CD4 + T cells are crucial in achieving a regulated effective immune response to pathogens. Naive CD4 + T cells are activated after interaction with antigen-MHC complex and differentiate into specific …

Learn about CD4 T-cell count, its role in immune health, normal ranges, and its significance in HIV monitoring. Understand CD4 count tests, low CD4 symptoms, and treatment insights.

In high-income countries, a CD4 count below 350 is defined as late diagnosis or advanced HIV. It shows HIV has damaged your immune system. In high income countries, a CD4 count less than 200 is …