The article Debate over vaccine requirements forges strange alliance states that opposition to vaccination (or government-mandated vaccination) doesn't seem to be a Democrat versus Republican, or liberal versus conservatives. The only hypothesis formed in the article was that being either extreme left wing, or extreme right wing, made you more likely to oppose vaccination:
"This is another of those far left-far right issues," she said.
Is opposition to vaccination correlated with other political beliefs? Is there a political spectrum that can predict whether you're likely to support or oppose vaccination?
If it varies from country to country, I'm mainly interested in the USA, Australia and other countries that are reasonably similar.