The Pamphlet Collection of Sir Robert Stout: Volume 39
The epidemic of small-pox, which began in England towards the close of 1870, and terminated in the second quarter of 1873, was part of a general epidemic outbreak of that disease, of world-wide diffusion, marked wherever it occurred by an intensity and malignancy unequalled by any previous epidemic of the disease within living memory. In every country attacked, so far as our information extends, the peculiar intensity of this epidemic was manifested by the extreme diffusiveness of the disease; by its attacking, in unusual proportion, persons who were regarded as protected against the disease, whether by previous small-pox or by vaccination, and by the occurrence with quite remarkable frequency of cases of a malignant and hemorrhagic type, and a consequent unusually high ratio of deaths to attacks.—Public Health Reports, No. 4. for 1874. P. 51.