Plague research. Scientists performing various experiments in order to collect data during a plague investigation. Plague is caused by Yersinia pestis

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Plague research. Scientists performing various experiments in order to collect data during a plague investigation. Plague is caused by Yersinia pestis bacteria, and is transmitted from rodent to rodent by infected fleas. Photographed at the Public Health Service Communicable Disease Center, San Francisco, USA, in 1967.

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Photo credit: © CDC/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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