Well, we have travel from all parts of the world. We now probably host viruses that we do not even know about at the moment.
But after a few hundred years, the virus distribution should be uniform world wide...but what will we humans have become?
I’ll take just about anything rather than a human/clam hybrid.
Buy the book ‘Plague of Corruption’
Judy Mikovits warns about retro-virus.
Look back at my previous comment. What happened in 1958?