HC Deb 06 March 1957 vol 566 c83W
Mr. Hobson

asked the Minister of Health how many of the 100 cases of diphtheria investigated in 1954 occurred more than five years after immunisation; and how many of the fatal cases of diphtheria in 1955 occurred more than five years after immunisation.

Mr. Vosper

Sixteen and two, respectively.