GENERAL HISTOLOGY

Detailed explanation-1: -In contrast, the innate immune system is classically characterized as being nonspecific, generally devoid of memory functions, and serving to provide a mechanism to rapidly respond to diverse pathogens and facilitate early containment of infection (5, 6).

Detailed explanation-2: -Immunity that is present at birth and lasts a person’s entire life. Innate immunity is the first response of the body’s immune system to a harmful foreign substance. When foreign substances, such as bacteria or viruses, enter the body, certain cells in the immune system can quickly respond and try to destroy them.

Detailed explanation-3: -B lymphocytes are the cells of the immune system that make antibodies to invading pathogens like viruses. They form memory cells that remember the same pathogen for faster antibody production in future infections.