Question

What do you know about immunity? Name two human vacancies and clarify their importance

Answer 1

Immunity is the phenomenon in which body fights against infection, disease or another unwanted biological invasion while having tolerance to prevent unwanted allergy and autoimmune diseases. There are two types of immunity, adaptive immunity and innate immunity. Adaptive immunity is slower than innate but is more specific in nature. Passive immunity occurs when antibodies are passed from one person to another. The active immunity involves T cells and B cells. HepB vaccine is used to prevent hepatitis B infection. HepA vaccine is used to prevent hepatitis A infection. DPT vaccine is used against three infectious diseases in humans, namely diphtheria, pertussis (whooping cough) and tetanus.