In the last 100 years, millions of people have been able to save lives due to immunization. But in many countries there has been a surge in vaccinations, and this trend is now increasing. The use of the vaccine began in the 1980. But before that, 26 million people died from the disease every year. According to the World Health Organization estimates, the number of deaths from measles vaccine use decreased by 80% from 2000 years to 2017 years. Decades ago millions of people were infected with polio or died of malnutrition or death. Now polio is almost eliminated. Those who oppose vaccination do not understand why. They should change their mind.