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Rod-shaped specimens of Yersinia pestis, the bacterial cause of plague, find a happy home here in the foregut of a flea. Fleas can transmit the infection to animals and people, who can get pneumonic plague and transmit the infection through a cough or kiss. Science Source hide caption

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Small Plague Outbreak In People Tracked To Pit Bull

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Andrew Dickerson On 'All Things Considered'

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