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Word Count: 3,127
Once upon a time there was an age when people got sick and there was no way to make an individual feel better That scenario may seem like it was from 300 or 400 years ago or maybe even in the Middle Ages However that was daily life for people up until about 200 years ago One of the ways in which the amount of people becoming sick has decreased over these past 200 years is through the innovation of vaccines Through the development of vaccinations the average lifespan for people worldwide has doubled and at the very least has increased an average of ten to fifteen years There have been a multitude of vaccines that have been created but as each new vaccine is created there are modifications that must be made to make it more successful This leads to a great accomplishment the medicine used globally today due to how it is saving lives through all of the advancements made in vaccinationsThere has always been disease in our world and there always will be According to the book entitled Vaccinations From Smallpox to Cancer by Elizabeth Forsyth and Margaret Hyde there are specified reasons for many of the diseases around the world today The reason in which people become sick and contract different diseases is due to the fact that our defense system cannot protect one from everything The defense system that the body uses to prevent one from getting sick is the immune system Forsyth 17 This means that when the body detects that there is a substance that is unknown or foreign to it the immune system kicks into high gear trying to defend the individual Once the immune system detects a foreign body or substance it will send cells to find and destroy it Forsyth 20 In the process of destroying the substance it builds immunity to that particular
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