Vaccines prevent fatal diseases and viruses. They do this by imitating that particular infection, without the harmful effects of that infection. Some people believe that naturally acquired immunity, immunity that is gained after having been exposed to the infection, …show more content…
This is simply untrue. Vaccines cause the immune system to develop the same response as it does to the real infection so this is why people might develop very minor symptoms such as a fever. (Center for Disease Control) However, diseases such as measles and polio are far more severe than any symptom a vaccine would cause. Even if there were a new side effect, the FDA closely monitors vaccine use and such events would be dealt with accordingly to make sure it does not happen again. “Although most common side effects of a vaccine are identified in studies before the vaccine is licensed, rare adverse events may not be detected in these studies. Therefore, the U.S. vaccine safety system continuously monitors for possible side effects after a vaccine is licensed.” While some parents might still be skeptical about the safety of vaccines overall, it is essential to know that the United States safety system for vaccines makes sure that they are as safe as possible, and that the U.S has the safest vaccine supply in its