Your immune system includes your body's cells, tissues, and organs ... Your immune system cells are your body's white blood cells that help fight infection and disease. Most of your white blood ...

Higher levels of leukocytes -- a form of white blood cell -- are associated with more severe symptoms of long COVID among ...

Penn researchers have developed a platform that emulates human bone marrow’s native environment. This breakthrough addresses a critical need in medical science, as animal studies often fail to fully ...

This biologically inspired platform makes it possible to build living human marrow tissue that can generate functional ... from rapid release of a large number of white blood cells from the marrow ...