Re the 1918 Pandemic there was a lot of unintentional social distancing with few cars, few roads and thoroughfares, lots of farms and relatively small population compared with today.
Apparently the Spanish Flu (nothing to do with Spain) was mostly spread by returning troops huddled up in troop ships and in huge army camps all over Europe waiting to return home, plus with poor diets and conditions immune systems were affected.
And yet to spread to the far corners of the Earth, including remote Alaskan Eskimo villages that didn’t have ANYBODY COME IN OR OUT. Village didn’t even have migratory birds. Source...”Flu” by Gina Kolata. It’s spread is not understood, to this day.
