Since vaccines have been in effect, the decrease of our population has decreased greatly. Although the pros about vaccines were great, the cons also made a big impact on the patients who were receiving it. Many incidents happened and it has caused many controversial issues throughout centuries. Even though the cons are outrageously dangerous, vaccines should be mandatory to our society today. Therefore in the past, there were many cases of diseases spreading. Diseases are contagious though touch, coughs, and etc. Edward Jenner was the first to create the world’s first vaccine, after an outbreak of smallpox occurred in 1796. Vaccines have saved hundreds and thousands of lives ever since vaccines were introduced to the world. Since then,
