What is an acquried immunity. Enlist the types of acquired immunity.
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Answer:
What is Immunity?
Immunity is the ability of the body to defend itself against disease-causing organisms. Everyday our body comes in contact with several pathogens, but only a few results into diseases. The reason is, our body has the ability to release antibodies against these pathogens and protects the body against diseases. This defence mechanism is called immunity.
Acquired Immunity
Acquired immunity or adaptive immunity is the immunity that our body acquires or gains over time. Unlike the innate immunity, this is not present by birth.
The ability of the immune system to adapt itself to disease and to generate pathogen-specific immunity is termed as acquired immunity. It is also known as adaptive immunity.
An individual acquires the immunity after the birth, hence is called as the acquired immunity.
It is specific and mediated by antibodies or lymphocytes which make the antigen harmless.
The main function of acquired immunity is to relieve the victim of the infectious disease and also prevent its attack in future.
It mainly consists of an advanced lymphatic defence system which functions by recognizing the own body cells and not reacting to them.
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.