1. Where immunizations originated

2. Benefits of immunization
3. Disadvantages of immunization

I. The first set of vaccines in the United States was developed in the 19th century by Louis Pasteur.
II. Vaccinations are beneficial in many different ways, a few being, they prevent millions of infectious disease cases every year, children who still get the illness after being vaccinated experience milder symptoms with less complications, and they produce economic benefits for society.
III. Not everyone is a proponent of immunizing, opponents believe children should be able to build a natural immunity to vaccines and that vaccines may trigger autism, ADHD, or multiple sclerosis.