Vaccination's vexed link to autism

Vaccination's vexed link to autism
http://www.smh.com.au/lifestyle/life/vaccinations-vexed-link-to-autism-20110914-1k8nm.html

"Vaccines and autism: why this curious case is not closed.  For many parents, childhood vaccinations are this century's abortion debate – highly divisive and driving a wedge between friends and neighbours. In the red corner are those banging the 'vaccinate at any cost' drum, and in the blue corner a collection of concerned parents and carers who say they're dealing with the damage done."