MICROANATOMY

Detailed explanation-1: -Convention says that the innate immune system retains no memory of previous infections. The adaptive immune system, in contrast, produces antibodies and cells that recognize highly specific parts of pathogens.

Detailed explanation-2: -It is an antigen-independent (non-specific) defense mechanism that is used by the host immediately or within hours of encountering an antigen. The innate immune response has no immunologic memory and, therefore, it is unable to recognize or “memorize” the same pathogen should the body be exposed to it in the future.

Detailed explanation-3: -Immunological memory is a unique property of the immune system as it can “store” information about a stimulus and can mount an effective response when the stimulus is encountered again. This response – a secondary immune response – is quicker and stronger than the primary response.

Detailed explanation-4: -Trained Innate Immunity. Immunological memory is a distinct characteristic of our immune system, and it relates to its ability to remember antigens from pathogens and mount an immunological response of greater magnitude and with faster kinetics upon reencounter of the same antigens.