Biological weapons are not new. Their use by armies has taken place for centuries. Take the Plague, for example. The pandemic was reportedly first introduced to Europe during the siege of the Genoese trading port of Kaffa in Crimea by the Golden Horde army of Jani Beg in 1347. It decimated 30 percent of the
Biological weapons: a history and emerging risks originally appeared in KevinMD.com.
