Rats were not to blame for spread of plague during Black Death...rodents and their fleas were thought to have spread series of outbreaks in 14th-19th Century Europe...team from universities of Oslo and Ferrara now says...can be "largely ascribed to human fleas and body lice".

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Submitted January 15, 2018 at 06:34PM by madazzahatter http://ift.tt/2DAXKZu

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January 16, 2018 at 12:30AM

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