asked the Secretary of State for Social Services if, pursuant to his reply of 3rd March, he will confirm that both the cases of encephalitis reported in the Public Health Service Laboratory Service study of 8,000 cases of whooping-cough recovered, and suffered no permanent brain damage, and that there is some doubt about the cause of one of them.

I can confirm this. I am advised that there can be no reasonable doubt that the cause was whooping cough.