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'''The vanilla orchid is native only to Mexico and relies on a rare black Mexican bee to pollinate naturally. In 1841, a French owned 12-year old slave on Île Bourbon (now Réunion Island) discovered how to hand-pollinate vanilla orchids. Shortly thereafter vanilla plantations were introduced to on Madagascar.'''
[[File:Vanilla_Illustration.jpg]]
The type of vanilla grown on Madagascar and in most other locations is ''Vanilla planifolia'', also known as Madagascar Bourbon or Bourbon Vanilla. About 97% of the world's real vanilla comes from Madagascar. However, an estimated 95% of all vanilla products contains artificial vanilla.
In ancient times, vanilla was said to have aphrodisiac effects and help against fever. Although these properties remain scientifically unverified, it is known that vanilla increases levels of catecholamines, including epinephrine, more commonly known as adrenaline. In an in-vitro test, vanilla was able to block quorom sensing in bacteria. In many bacteria, quorum sensing signals function as a switch for virulence in that microbes only become virulent when these signals indicate that they have the numbers to resist the host immune system response. The essential oils of vanilla and vanillin are often used in aromatherapy.