Wikipedia sez:
The 1918-1920 (just two short years) worldwide influenza epidemic infected 500 million people all around the world. Somewhere in the range of 50-100 millions (some 3-5% of the world's population) died, mostly young folks previously in good health. If it had happened just two years earlier, the English, French, and German (and later, US) armies in WWI would have suffered massive casualties from the epidemic.
Wiki-p further says, "A large factor in the worldwide occurrence of this flu was increased travel. Modern transportation systems made it easier for soldiers, sailors, and civilian travelers to spread the disease."
Now all of that was 100 years ago when autos were in their infancy. No international air travel at that time whatsoever. Compare to today.
The Obama administration thinks it's pointless to try to quarantine this disease or take steps to limit travel from afflicted areas in Africa to the US.
This Obola is lookin' to become some kind of incredible Obomination.