To ask the Scottish Executive, in light of the research findings of Dr Steve Walker which replicate the findings of Professor John O’Leary and Dr Andrew Wakefield in discovering measles RNA from the MMR vaccine in the gut of autistic children and, in light of the recent study by Professor Gillian Baird, published in The Lancet which stated that one child in 100 in the United Kingdom now has autism and given that this level of autism appears to follow the introduction of the MMR vaccine to the UK, what urgent steps will be taken to re-introduce single vaccines as a choice until all the environmental factors contributing to autism are established.