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Updated: July 24, 2025
De Curco introduced vaccination into Vienna, where its beneficial results were displayed on a striking scale; previously the average annual mortality had been about 835; the number now fell to 164 in 1801, 61 in 1802, and 27 in 1803. After the introduction of vaccination in England the mortality was reduced from nearly 3000 per million inhabitants annually to 310 per million annually.
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