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John McFadyean
Scottish veterinary surgeon / From Wikipedia, the free encyclopedia
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Sir John McFadyean FRSE LLD (1853 - 1941) was a Scottish veterinary surgeon and Professor of Veterinary Science. He was Principal of (and a Professor at) the Royal Veterinary College from 1894 to 1927.
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In 1906 he was the first person to isolate the Campylobacter species of bacteria, and due to this made major advances in public health.[1]