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Until Latin we must leave to find the etymological origin of the term immunization that now concerns us. Specifically, it emanates from the word "immunis", which can be translated as "without performing service."

Immunization is the action and effect of immunizing . East verb , meanwhile, refers to make immune (get someone or something not attacked by diseases or scourges). That or that which receives an immunization, therefore, is eXento certain problems, disorders, sufferings, etc.

For example: “Before you travel, you must apply three vaccines that will give you immunization against yellow fever”, "Immunization is achieved from the supply of antibodies that act in the body", "With this antivirus, your computer will enjoy immunization against the main Trojans".

Importantly, immunity can be natural or artificial . The notion of immunization usually refers to the artificial process that allows to achieve immunity before a certain disease .

The passive immunization it is achieved from the antibodies that are generated in the body of other person and then transmitted in some way. That is the case of infants who acquire antibodies transferred by their mother through the placenta.

The active immunization Instead, it consists in the application of vaccines that promote an immune response of the organism to certain pathogens. The intention is to achieve the development of an immune memory that allows the formation of protective antibodies against the antigen in question.

So important is the immunization of human beings, in order to avoid diseases of different types, that in certain countries such as Chile there is what has been called the National Immunization Program. Since 1978 there is one who, among other things, seeks to significantly reduce what is infant mortality. Thus, for example, thanks to him it has already been possible to eradicate both smallpox and measles or polio.

Given the value of immunization, the last week of April celebrates World Immunization Week. With it, what is sought is to promote and promote the use of vaccines to protect people from certain pathologies. This 2014 precisely that has developed under the motto: "Are you up to date?".

Within the scope of the economy, the term immunization is also used, but with another meaning. Exactly, in that sector it is used to refer to the process of reducing, and even eliminating, if possible, what is the risk of an interest rate that affects a particular bond portfolio. In this way, what we try to avoid is that this, and more specifically the value of its securities, can be affected by the evolution of these interest rates.

The concept of immunization can also be found in the field of computing in reference to those tools that protect a computer (computer ) against virus and other threats. The immunized computer has defenses against specific attacks, although these defenses must be updated periodically as threats are mutated and updated.

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