A surgeon extracting a guinea worm from a man's leg, in the background is a similar scene after a successful operation, a surgeon is holding a long worm. Photograph of a halftone after an engraving by J. Luyken.

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A surgeon extracting a guinea worm from a man's leg, in the background is a similar scene after a successful operation, a surgeon is holding a long worm. Photograph of a halftone after an engraving by J. Luyken. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.