#Places That Escaped The Spanish Flu of 1918 ....“These communities basically shut themselves down,” explains Howard Markel, an epidemiological historian at the University of Michigan who was one of the authors of the study. “No one came in and no one came out. Schools were closed and there were no public gatherings. We came up with the term ‘protective sequestration’, where a defined and healthy group of people are shielded from the risk of infection from outsiders.” The people of Gunnison managed this by erecting guarded barricades on the main highways in and out of the surrounding county. Railway passengers were forced to submit to two days of quarantine upon arrival...... More here: https://www.bbc.com/future/article/20181023-the-places-that-escaped-the-spanish-flu Important note here: you don't wait until you have a few cases, and then lock the doors, you lock the doors before you have any cases at all. This is not what China is doing. China waits until they have a certain number of cases and THEN locks the doors. This is not what the U.S.A. is doing either. The US still has ships arriving from China and other infected places. The U.S. still has planes flying all over the world, and only stopped flying to China a few days ago. Do the math.