Co-sleeping, sleep training, breast versus bottle, free-range versus helicopter parenting – these are all hot-button parenting issues. But no parenting issue invokes more division and derision than vaccination.

The difference, pro-vaccinators argue, between the first examples and vaccination is that the decision not to vaccinate impacts more than just one’s immediate family. Unvaccinated children can present a health risk to those too young to be immunized or who are unable to receive vaccines because of allergies or other health issues.

Keep reading... Show less