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Jul 11, 2014 02:20 PM ET // Tia Ghose, LiveScience
The Centers for Disease Control and Prevention is now running tests on six forgotten vials of smallpox recently discovered in an unsecured laboratory.
Feb 3, 2014 06:45 PM ET // Stephanie Pappas, LiveScience
A 14th-century outbreak of plague known as the Black Death may have caused Europeans and Roma people to evolve to look more similar.
Jan 29, 2014 11:27 AM ET // Sheila M. Eldred
Scientists have confirmed the bacteria that caused the plague pandemic 1,500 years ago. Continue reading →
Jun 7, 2011 08:31 AM ET // John D. Cox
A new study shows how regional climate differences controlled the intensity of outbreaks of plague in China.