THE controversy surrounding the MMR vaccine is abating.
The overwhelming majority of experts say there is no link between the jab and autism and the weight of scientific evidence appears to support their view.
But the blunder that has led to nearly 100 teenagers receiving three instead of two doses of the vaccine will do little to quell the unease still felt by some parents.
Jonathan Harris, who campaigns against the jab, neatly sums up its impact: "It is little wonder that parents have no trust in the NHS immunisation programme when things like this happen.
"It is scary how haphazard their system is."
Not all the blame lies at the door of the Heart of Birmingham Primary Care Trust, responsible for vaccinating the children.
Letters were sent to parents saying that youngsters who had already received two doses did not need another.
But the correspondence was confusing for some parents because 93 boys and girls were sent for a third jab.
The PCT must ensure that its letters are crystal clear and that a foolproof system exists to track which youngsters have had which injections.
Loose procedures will do nothing to convince wavering mums and dads that it is safe for their children to receive this important vaccine.