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Do You Know How Active and Passive Immunity Work to Keep You Healthy?

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https://www.thoughtco.com/active-immunity-and-passive-immunity-4134137

thoughtco.com

Do You Know How Active and Passive Immunity Work to Keep You Healthy?
Don't you want to understand how immunity works, including adaptive and innate, natural and artificial, and active and passive?

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Our Immunity

Our Immunity

Immunity is defined as the set of defenses, that our bodies possess, which has the role to protect us against pathogens and to fight against infections.

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Immunity categories

There are several immunity categories:

  • Nonspecific defenses: these work against all foreign matter and pathogens
  • Specific defenses: these ...

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Active immunity

By active immunity, we generally understand the resistance that our immune system shows against pathogens.

By the so-called 'clonal selection', enough antibodies a...

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Active immunity features

  • The need to be exposed to a pathogen or to the antigen of a pathogen, which leads to the production of antibodies
  • The cells involved are of three types

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Passive immunity

Passive immunity refers to the creation of immunity by introducing antibodies from outside the organism, such as the injection of antivenom after having been bitten by a snake.

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Passive immunity features

Among the features of passive immunity, the most known are:

  • This type of immunity does not require exposure to antigen or to an infectious agent
  • Th...

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SIMILAR ARTICLES & IDEAS:

False Remedies

False Remedies

Much like a hundred years ago when Spanish Flu killed millions, questionable medicinal concoctions and folk remedies have surfaced across the world, claiming to boost the immune system.

S...

Immunity-Boosting Is A Myth

Pills, superfoods, and other wellness habits do not boost our immunity as the 'symptoms' which we get when infected are in fact measures taken by our immune system to respond to the foreign pathogen.

Many allergies that people have are a misguided response from the immune system that treat harmless foreign bodies as harmful pathogens.

The Symptomatic Treatment

While over-the-counter medicines provide us with a so-called ‘relief’ by suppressing our fever, runny nose and other ‘symptoms’, these are in fact necessary for the body to get well. The symptoms we want to be stopped are not our enemy:

  • The mucus is helping flush out the pathogen.
  • The fever(heat) makes the body impalpable for it to survive and replicate.
  • The body pain is actually the inflammatory chemicals in your veins, guiding the immune cells like an air traffic controller.
  • The brain is provided with a signal to slow down and let the body recover.

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Our immune system

The immune system does an outstanding job most of the time. To provide such excellent protection against bacteria, viruses, parasites, and fungi, our immune system must continuously learn.

Innate immunity

Innate immunity cells quickly respond to invaders and can deal with over 90% of infections.
These cells recognize invaders by looking for broadly shared patterns, such as common molecules on the surface of most bacteria.

Adaptive immunity

When the innate response fails to deal with an invasion, the adaptive immunity takes over. The adaptive cell looks for a specific pattern. It could be a particular protein on the surface of a virus or bacteria.

There are millions of adaptive immune cells, each to recognize a different pattern. When they recognize an invader, they multiply to form an army to kill it. This process can take a week when a new invader infects us. After the invader is removed, the adaptive cells that recognized it are kept as specialized memory cells.

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The Common Cold

With over 200 different kinds of viruses that make up the common cold, Science is struggling to find a cure.

Adults suffer this elusive, widespread, and infectious disease 2 to 4 times...

The 7 Identified Virus Families

Scientists to date have identified seven virus families that cause the majority of colds:

  • rhinovirus
  • the new 2019
  • influenza
  • parainfluenza
  • adenovirus
  • respiratory syncytial virus (RSV)
  • metapneumovirus.

Vaccines vs Drugs

For Doctors, vaccines are preferable to drugs as they protect the host even before any infection.

For Pharmaceutical companies (Big Pharma), vaccines don't spell money, as much as over-the-counter drugs and treatment do.

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