What is meant by the term 'Primary immune response'?

Question

Also what is meant by the term 'Secondary immune response'?

Answer 1

Primary immune response is the body's first line of defense. It involves in general only the macrophages of the lymph system which will consume any foreign material and cells which they discover in the body tissues.

Secondary immune response or Induced immune response doesn't activate for several days, when infections are prolonged or widespread enough that the macrophage/complement system cannot purge them itself. It involves the induction of T-cell and B-cell mediated defense, wherein antibody mediated cell clearing or induced apoptosis occurs, isolating invader cells or killing infected cells respectively.

Answer 2

Primary Responses (Primary Immune Responses). The immune response (cellular or humoral) to a first encounter with antigen . The primary response is generally small, has a long induction phase or lag period, consists primarily of IgM antibodies, and generates immunologic memory.

Secondary Responses. The immune response which follows a second or subsequent encounter with a particular antigen. Can be severe in certain cases (e.g. Anaphylactic shock ).

Answer 3

The first encounter of a naive T-cell with antigen that results in activation, proliferation, and, finally, creation of memory T-cells.

Answer 4

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Answer 5

put both phrases in the search separately and see for yourself

Answer 6

http://focosi.immunesig.org/immuneresponses.html
primary

http://www.newton.dep.anl.gov/askasci/mole00/mole00360.htm
secondary