Killer bees (Africanized honey bees) are more dangerous because of how many attack at once, not because each sting is more poisonous. A single sting is about as harmful as a normal honey bee sting, mainly causing local pain and swelling unless you are allergic. The real danger is when they defend a nest: they react faster, send many more bees, and may chase a person hundreds of yards, delivering dozens to hundreds of stings. Large numbers of stings can inject enough venom to cause vomiting, orga

Some patients in Kenya turned to an unconventional method of pain relief, offering themselves up to be deliberately stung by bees. Scientists are taking notice. | Reuters