A treatise on the cow-pox; containing ... the principal facts in the history of that disease, etc / [George Bell].

Bell, George

Date:: 1815

Credit: A treatise on the cow-pox; containing ... the principal facts in the history of that disease, etc / [George Bell]. Source: Wellcome Collection.

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sores do not heal readily, and often remain open for several weeks. If a person who is thus affected, or who has any of the infectious matter on his fin- gers, milks the cows, as is frequently done in extensive dairies, vesicles of a particular appearance are soon observed on their teats. These vesicles are at first of a pale blue or livid colour, with a depression in their cen- tre, and are surrounded with an erysipelatous inflammation. They contain a transparent watery fluid, and the parts in their immedi- ate vicinity become hard and inflamed. If care is not taken to prevent them from being rubbed, they burst, and give rise to a foul deep-eating ulcer, which is long of healing. Sometimes the cow appears to be sick, and yields less milk than usual; but this is not a frequent occurrence. If at this time any of the matter of the vesicle, or sore, touches the milkers, when the scarf skin has been previously scratched, or lubbed off, vesicles similar to those pn the

A treatise on the cow-pox; containing ... the principal facts in the history of that disease, etc / [George Bell].

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