When an individual is first exposed to an infective virus, several days pass before significant numbers of specific antibody molecules and T cells are produced.However, a second exposure to the virus causes a large and rapid production of antibodies and T cells.This response is an example of

Question

Quizplus · Accepted Answer

The rapid and large production of antibodies and T cells in response to a second exposure to a virus is an example of immunological memory. This is because the immune system "remembers" the specific antigens and can mount a quicker and stronger response upon subsequent exposures, due to the presence of memory B and T cells. The other options, such as antigenic determinants, phytoalexins, phagocytosis, and interferon production, do not directly relate to the phenomenon described.

When an Individual Is First Exposed to an Infective Virus