GENERAL HISTOLOGY

Detailed explanation-1: -Active Immunity results when exposure to a disease organism triggers the immune system to produce antibodies to that disease. Active immunity can be acquired through natural immunity or vaccine-induced immunity.

Detailed explanation-2: -Individual immunity: Individual immunity is determined by various factors such as health status, nutritional status, previous illness, personal hygiene, genetic differences etc. For examples; Individual with genetic deficiency of glucose-6 phosphate dehydrogenase are resistant to Malaria.

Detailed explanation-3: -The two types of acquired immunity are adaptive and passive. Adaptive immunity occurs in response to being infected with or vaccinated against a microorganism. The body makes an immune response, which can prevent future infection with the microorganism.

Detailed explanation-4: -Acquired immunity is also called specific immunity because it tailors its attack to a specific antigen previously encountered. Its hallmarks are its ability to learn, adapt, and remember. Acquired immunity takes time to develop after first exposure to a new antigen.