People who are anti vaccine aren't worth arguing with honestly. What you could do is find a list of diseases or sicknesses that affects infants or toddlers. Then you would have to find the percentage of toddlers or infants that are affected by those conditions in places where they are not vaccinated. It takes research. The FACT is that vaccines keep infants alive. They have very weak immune systems and one simple foreign bacteria can literally take their lives away.
