What is Immunity and How Does it Apply to You?
What is immunity? Immunity is the ability of multicellular organisms to protect themselves from harmful microorganisms. Immunity involves specific and nonspecific components that function as eliminators and barriers against pathogens. Several studies have shown that the immune system protects humans against viruses, bacteria, and parasites. Ultimately, immunity helps us stay healthy and strong. In some ways, it can even prevent the spread of infectious disease.
Immunity is the ability of the human body to ward off specific infectious diseases. It is the ability to survive the invasion of a pathogen without contracting an infectious disease. Immunity develops when the cells in our immune system encounter harmful substances called antigens. These antigens stimulate the body’s immune response, which fights off these foreign invaders. There are two types of immunity: innate and adaptive. Innate immunity develops in the presence of an infectious agent, whereas passive immunity comes from “borrowing” antibodies from another person.
Another type of immunity is diplomatic immunity. This is granted to diplomatic agents by 192 countries under the 1961 Vienna Convention on Diplomatic Relations. Under this treaty, diplomatic agents are exempt from any civil or criminal proceedings and can engage in business interests unrelated to their diplomatic duties. Similarly, qualified immunity is granted to certain public officials for actions taken in the course of their duties. These examples demonstrate the importance of immunity. But what is immunity and how does it apply to you?
