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

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

thoughtco.com

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

By the so-called 'clonal selection', enough antibodies are built up in order to help our organism fight off colds or different diseases.

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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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There are several immunity categories:

  • Nonspecific defenses: these work against all foreign matter and pathogens
  • Specific defenses: these are specialized in fighting against particular threats
  • Innate immunity: natu...

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  • 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: T cells, B cells and anti-presenting cells
  • Immunity is acquired after severa...

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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
  • The response to an infectious agent is immediate
  • The immunity is effective on s...

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Was learning about communicable diseases in biology, and found the process of immunity really interesting in the context of the COVID 19 pandemic.

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