Below you may find the Feasting on rats & humans these bloodsuckers helped cause the deaths of 1/4 of Europe during the Middle Ages which is part of the Jeopardy Archive. In case the question or answer is wrong or something is missing do not hesitate to contact us and we will be glad to help you out. This question was last seen on October 20 2021 Jeopardy! TV Game Show.

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