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Quotation from A Treatise on the Smallpox and Measles by Abu Bakr al-Razi (Rhazes)
“Now the Small-Pox arises when the blood putrefies and ferments, so that the superfluous vapours are thrown out of it”
A Treatise on the Smallpox and Measles, Chapter I, §6, trans. William Alexander Greenhill
The heart of al-Razi's humoral explanation, comparing children's blood to must that ferments into wine.
Citation: "Now the Small-Pox arises when the blood putrefies and ferments, so that the superfluous vapours are thrown out of it" — Abu Bakr al-Razi (Rhazes), A Treatise on the Smallpox and Measles, Chapter I, §6, trans. William Alexander Greenhill. (id al-razi-treatise-on-smallpox-and-measles-q2)
Portrait: Al-RaziInGerardusCremonensis1250, Illumination in Gerard of Cremona's Recueil des traités de médecine, Public domain.
