The plague may have lay hidden in Europe from the 14th to 17th century.
The plague has haunted humans for much longer than once thought.
An ancestral form of Black Death bacteria has been found near the butt of a prehistoric flea.
How does a Medieval disease find its way into the modern era?
Black rats may not have been responsible for outbreaks of the plague in Europe, a new study argues.
As plague claims more lives, authorities scramble to kill infected fleas in the poorest neighborhoods.
Ebola made the cut, as did anthrax and botulism. Find what other diseases government officials are closely monitoring.
Laci Green examines some of history's most horrifying and death-dealing illnesses, the kind that lay waste to entire populations.
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