Two types of white blood cell are important in this: T cells and B cells. These cells work together to orchestrate a targeted immune response. But the way they recognise and deal with germs is ...

New types of T cells seem to pop up in the scientific literature with increasing frequency. Just this June, for instance, University of Melbourne immunologist Angela Pizzolla and her colleagues ...

CD4-positive T cells are a subtype of lymphocyte. They are MHC class II-restricted and are important mediators of adaptive immunity. These cells are involved in both the induction and the ...

Like all of the cells in our body, immune cells age. Over time, they become less and less able to fight infection, cancer, and disease. Previously, researchers thought the process of cells growing old ...