Vaccines Are Prevent Dangerous Diseases Essay

1456 Words 6 Pages
Vaccines are used to prevent dangerous diseases that can be not only harmful but also deadly. Vaccines have nearly eliminated disease & help prevent outbreaks. “A vaccine is a product that produces immunity from a disease and can be given by mouth, aerosol or needle injection. A vaccination is the injection of a killed or weakened organism that produces immunity in the body against that organism. An immunization is the process of when a person becomes protected from a disease.” (basics, n.d.)
Before any vaccines become licensed they have to pass three phases. In phase one researches test healthy adults and have to see if it works, if it is safe, if there are any side effects, and also if the amount of medicine is related to side effects. Phase two consist of hundreds of healthy people receiving a test vaccine then they have to determine what the short term effects are and how the immune system responds. The third phase is to determine if it is safe, effective, common side effects, and compare the vaccinated with the unvaccinated. The Food and Drug Administration (FDA) will only license a vaccine if the good outweighs the bad and it has to be safe and effective. (about vaccines, n.d.) Edward Jenner created the first vaccine for smallpox in 1796. His development included taking cowpox and putting it in a young boy. The young boy had a small fever but was okay within days later, he then injected him with smallpox and it worked the way it was supposed to. On February 2, 1954…

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