Thanks for the learned (the hard way apparently) information of the thousands of unseen microbes floating around in our biosphere.
If only native North & South Americans had a clue about this when they began mixing with Europeans centuries ago. But, whether people believe in the medical sciences or not, if they had known, how much difference would that have made centuries in the past. Many are hell bent on their own, I don't know, divine logic(?) to accept others information that proves useful.