Ultimately, the objective is to recognize cells, target them, and move them into position for irradiation as fast as possible.

They occur when the bacteria colonizes in the throat area, where it recognizes epithelial cells.

Your immune system is designed to recognize and destroy abnormal cells.

It recognizes abnormal cells, destroys them or walls them off.

Cells that normally would die because they recognize cells of the body as foreign tissue instead live on.

It may also recognize cells that A23 and A24 miss because of small variations.

T-lymphocytes recognize cells infected with intracellular parasites based on the foreign proteins produced within the cell.

It recognises such cells by a condition known as "missing self".

Glycoproteins are important to recognise immune cells in mammals.

T-cells bear receptors on their surfaces that recognize specific viruses or malignant cells.