CD4

CD4 cells, also known as T-helper cells, are a type of white blood cell crucial for the immune system. They help coordinate the body's response to infections by signaling and activating other immune cells. Think of them as messengers that orchestrate a coordinated attack when harmful microbes invade. Maintaining healthy levels of CD4 cells is important for fighting infections effectively. In conditions like HIV/AIDS, the virus specifically targets and destroys these cells, weakening the immune system and increasing vulnerability to illnesses. Monitoring CD4 levels helps assess immune health and guides treatment decisions.