Hemorrhagic Smallpox Rash, photo by J. B. Byles in Thomas Francis Ricketts, The Diagnosis of Smallpox
(London and New York: Cassell and Co., 1908)
- Susceptibility ran in families and may therefore be genetic.
- For unknown reasons, pregnant women were also at high risk.
- There were two types:
- 100% fatal
- The rash presented as a thick, velvety reddish-purple layer, giving this form of the disease its old folk-name: The Purples.
- Victims died on or about the sixth day after the onset of symptoms, before blisters ever broke out.
- The immediate cause of death was heart failure or pulmonary edema (fluid in the lungs).
- About 97% fatal
- The pustules sank deep into the skin, rather than rising, and were ringed by dark circles (from internal bleeding).
- Victims bled at nose, eyes, vagina, and anus. Old descriptions tell of victims weeping, peeing, and shitting blood.