Philosophically when it pertains to medical interventions, a parent should not intentionally subject their child to increased risk. Thus if it is reasonable for a parent to think that the risk from a particular vaccine exceeds the benefit of that vaccine, then that parent should philosophically exempt or delay that particular vaccine. The question, then, is whether it is reasonable for a parent to think that a vaccine’s risk exceeds its benefits.
1) Risk vs benefits of vaccines administered at age 12 months Dec 2011 Canadian study (Wilson et al, Adverse Events following 12 and 18 month vaccinations) found a 33% increase in emergency room visits or hospital admissions 4-12 days post 12-month vax, which equated to 1 incremental emergency room visit or hospital admission for every 168 children vaccinated. Study also found an additional 20 febrile seizures for every 100,000 vaccinated at 12 months (a 1 in 5,000 risk). A key vaccine administered at age 12 months is the MMR (Measles/Mumps/Rubella) vaccine. Of those diseases, measles is the highest risk. As comparison, the SmartVax Weigh The Risks of Vaccination analysis by SafeMinds found that the incremental risk from measles if a child doesn’t vaccinate until age 5 to be 1 in 16M injury and 1 in 19M death in a highly-vaccinated population
1 in 15,851 injury and 1 in 18,924 death in a low-vaccinated population
Given these numbers, it is reasonable for a parent to think that the vaccines administered at age 12 months have higher risk than benefit.