A practical treatise on vaccina or cowpock / by Samuel Scofield, M.D. ... ; embellished with a coloured engraving, representing a view of the local affection in its different stages.

  • Scofield, Samuel
Date:
1810
Catalogue details

Licence: Public Domain Mark

Credit: A practical treatise on vaccina or cowpock / by Samuel Scofield, M.D. ... ; embellished with a coloured engraving, representing a view of the local affection in its different stages. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    virus. From this time the disease progresses through its different stages, not, however, with that admirable and beautiful regularity which characterizes the true disease. The effect subsequent to inoculation with impure virus, instead of manifesting itself in the form of a regular and circumscribed vesicle, has the appearance of an ill conditioned creeping sore, seldom or never assuming the vesicular form; and instead of terminating in a scab exhibiting the character of one from the genuine vesicle; it is, a festering, light-coloured or yellow one, being always less thick and heavy than the former. What is still more strikingly different is, that the scab succeeding the genuine vesicle appears to be merely, as it were, laid on or slightly adhering to the skin, having its su- perior surface very level or plain, and its margin or external circumference is very abruptly elevated above the common level of the surrounding parts: whereas, the scab? of the spurious has considerable convexity, is thickest in the middle, rising but little [6]
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