ANOTHER billboard spruiking an anti-vaccination message has appeared in Perth, this time on Oats Street in Carlisle.

The billboard poses the question: “Do you know what’s in a vaccine?”

It then has the web address for learntherisk.org, an anti-vaccination organisation based in the US.

The website states “vaccines contain multiple synthetic chemicals that should never be injected into the body and are part of the reason we have skyrocketing chronic health issues that have somehow become the new ‘normal’ in our society”.

This is the second such billboard to appear in Perth over the past few months, with another spotted in June.

At that time, the health minister Roger Cook said he would look at all options to have the billboard removed.

Perth academic Judy Wilyman, however, argued the billboard did not spread an anti-vax message.