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Message: <blockquote data-quote="Honest-killer" data-source="post: 15413511" data-attributes="member: 391781">Clostridium botulinum is also used to prepare the medicaments Botox,  Dysport, Xeomin, and Neurobloc used to selectively paralyze muscles to  temporarily relieve muscle function. It has other “off-label” medical  purposes, such as treating severe facial pain, such as that caused by  trigeminal neuralgia. Botulin toxin produced by C. botulinum is often believed to be a  potential bioweapon as it is so potent that it takes about 75 nanograms  to kill a person (LD50 of 1 ng/kg,[25] assuming an average person weighs  ~75 kg); 1 kilogram of it would be enough to kill the entire human  population. For comparative purposes, a quarter of a typical grain of  sand’s weight (350 ng) of botulinum toxin would constitute a lethal dose  for humans. Clostridium botulinum is a soil bacterium. The spores can survive in  most environments and are very hard to kill. They can survive the  temperature of boiling water at sea level, thus many foods are canned  with a pressurized boil that achieves an even higher temperature,  sufficient to kill the spores.</blockquote>

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