Vaccines are used to maintain the public’s health in a safe and efficient way. They prevent sickness from spreading and prevent death from many different infectious diseases. Vaccines have destroyed both smallpox and polio which were both major public health issues. Vaccines help along the body’s natural immune system and prepares your body to fight off unnatural infections or bacteria. If a person has been vaccinated properly the immune system can prevent an illness before it hits. When many people have been vaccinated they are less likely to transfer a disease onto someone else. Vaccines have the ability to protect large areas of people not just individuals. So let’s say that there is a new virus that arises somewhere in the United States
