I think many pandemics have spread through travel, from the Bubonic Plague to HIV which originated in Africa as many diseases that affect humans have since most of our evolution occurred there. I fly frequently and mostly change planes in Phoenix. Probably 80% of the conversations I overhear in the PHX terminals are not in English. Many travelers are dressed in their native attire - and that is PHX, not JFK or LAX.
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"No one is more hated than he who speaks the truth." Plato
“To argue with a person who has renounced the use of reason is like administering medicine to the dead.” Thomas Paine
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