What is immunity ? Write down the difference between active and passive immunity?
Answers
Answer:
Immunity is protection from disease.
difference
The main difference between the two types of immunity is that
active involves antigens and passive involves antibodies
.Explanation:
Active Immunity
This kind of immunity is acquired when
antigens of a pathogen enter an individual's body and an immune response is triggered.
Natural active immunity
occurs when an individual contracts an illness naturally. For example, they may ingest the cholera virus through contaminated water.
Artificial active immunity
occurs when an individual is given a weakened form of a pathogen through a vaccine. In both cases, the immune response is triggered, culminating in the production of memory cells that protect the body if a second infection occurs.
Passive Immunity
This occurs when antibodies enter an individual. These are essentially molecules that fight and destroy a specific pathogen's antigen.
Natural passive immunity
occurs when they pass to an infant through the mother's milk.
Artificial active immunity
occurs when the antibodies are injected into an individual. In both cases, the antibodies destroy the pathogen and grant the individual immunity.
hope it will help u........
Answer:
immunity is the ability of the body to resist a disease by natural or artificial means