On the "questionability"
All the "autism" advocates keep forgetting what is prevented by the vaccines:
1. Measles has a mortality rate and long term disability rate. Non zero one.
2. Diphteria has a mortality rate and a fairly substantial one to boot. One of my childhood memories which I would never forget is one of the kids in the same apartment block contracting it and the ambulance breaking down on the way. By the time the replacement ambulance arrived the kid would have been dead if our retired pediatrician neighbour did not tracheotomize her with a kitchen knife and a drinking straw.
3. Tetanus has an undisputable mortality rate
4. Pertusis has a mortality rate.
5. Varicella in individuals with eczema or asthma has a significant mortality rate.
These, taken together yield a childhood mortality rate of > 1% which was the norm 100 years ago and is still seen in the 3rd world. One of the reason why we do not see them even in non-vaccinated individuals is because of 99% of the general population is vaccinated. So the few individuals that do not for "ideological" reasons are in fact parasitising on the rest. If, however the vaccination prevalence drops under a threshold (for each of 1,2,4,5 this is is ~ 90-92%) the disease will have a sufficient susceptible population to spread. So they can _AND_ will watch their kids die. In the name of something that even if proven is still significantly lower (by many orders of magnitude) risk than the risk of childhood death from a preventable disease.