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Ueber die Gefahr der Ausbreitung des gelben Fiebers in Europa, und über die kräftigsten und zuverlässigen Schutzmittel dagegen. Der allgemeinen Beherzigung übergeben von Dr Christian Friederich Harles. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.