Life-long immunity to a disease after a vaccination is due to the presence of ________ cells.

Question

Quizplus · Accepted Answer

Memory cells are created after vaccination and have the ability to "remember" the antigen from the disease they were vaccinated against. If the person is exposed to the actual disease in the future, the memory cells quickly recognize it and produce the necessary antibodies to fight it off, resulting in life-long immunity. Helper T and killer T cells are also involved in the immune response, but they do not provide life-long immunity on their own. Red blood cells are not involved in the immune response.

Life-Long Immunity to a Disease After a Vaccination Is Due