There is a small but growing movement against immunizations in the US and in the world. Advocates claim that there is a positive relationship between immunization rate and autism, and they prefer their children to get a flu that would “increase their immune system” rather than increase their risk of contracting autism. Further, they believe immunization is the private decision of each family and nobody should interfere. Please, provide at least with 3 arguments of why this statement is likely flawed.