of it. 46
Figure 1.1 England and Wales: diphtheria deaths, 1931–48.
Source : J. A. Scott, MOH Report, 1957 , p. 65. Reproduced from the digitised Medical Officer of Health Reports by the Wellcome Trust under Creative Commons licence (CC-BY 4.0).
However, the Ministry became concerned at the sudden drop in the number of young children being immunised. In 1949, the government had achieved its target of 75 per cent