Which type of white blood cells fight infection by killing body cells that contain viruses or other harmful non-self substances?

Question

Quizplus · Accepted Answer

Cytotoxic T cells are a type of white blood cell that can recognize and kill body cells that have been infected with viruses or have become cancerous. They do this by releasing toxic substances that trigger apoptosis, or programmed cell death, in the targeted cells. Erythrocytes are red blood cells that carry oxygen, and while antigens are molecules that can trigger an immune response, they are not themselves white blood cells. B cells, meanwhile, are another type of white blood cell that produce antibodies to help fight infections, but they do not directly kill infected cells.

Which Type of White Blood Cells Fight Infection by Killing