Add Yahoo as a preferred source to see more of our stories on Google. In this Aug. 10, 2019 file photo, a sign warning of bubonic plague is displayed at a parking lot near the Rocky Mountain Arsenal ...
7monon MSN
What still causes the plague in the US?
Person-to-person spread of the plague hasn't been seen in the U.S. in more than a century - so what causes the occassional cases?
One hundred seventy years ago, the seeds of what would become the most fatal plague in American history sprouted on a ship docked more than 1,000 miles from Norfolk. The ship, the Benjamin Franklin, ...
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