The Australian Academy of Science has science education as one of its main activities.
It has, today, published a booklet for parents on the science of immunisation. While the vast majority of Australian parents do the right thing and get their children vaccinated, there are still a few that do not. Some of these are nuts who still think vaccines cause autism; more generally, they believe that vaccines might be unsafe, or they had a previous child that had a reaction.
The Academy recognises that when they have the facts most people will do the right thing and take advantage of these medicines. Vaccines are overwhelmingly more safe than dangerous, and have eliminated many deadly diseases in only a couple of generations.
You can read more, and download the booklets in PDF form, from the Academy’s website.