ANATOMY

Detailed explanation-1: -The antibodies are released in the blood, which binds to the pathogen and inactivates it. Few cells also contribute to forming memory cells. In case of reinfection, these memory cells react more quickly and develop immunity within 2–3 days (54).

Detailed explanation-2: -The immune response is how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful.

Detailed explanation-3: -Resistance is defined as the ability to limit pathogen burden while tolerance is defined as the ability to limit the health impact caused by a given pathogen burden.

Detailed explanation-4: -Immunity means com-plete resistance to disease; immune means not subject to attack by a path-ogenic organism or virus.