Vaccines

Since the first vaccine in 1796 for smallpox, made by Edward Jenner, modern science has managed to create vaccines to give us immunity to many deadly diseases. Vaccines have reduced many diseases and have even eradicated others. However, currently there is evidence that not all vaccines are beneficial and that some may actually be harmful. In this essay, I will discuss about what a vaccine is and how they work. I will also discuss the pros and cons of vaccinations, and show some of the advantages and disadvantages of a vaccine as well as the moral and ethical implications on our community.
The word vaccine came from the word “vaca” which means cow in Latin. A vaccine is a means of producing immunity against pathogens, such as viruses and bacteria, by the introduction of weakened, killed, or altered antigens. In other words, it prepares the bodies defences against a particular pathogen before it strikes. There are a multiple amount of steps that the human body goes through in...