https://www.foxnews.com/health/dr-d...d-be-insulted-to-be-compared-with-los-angeles Per titles. Airborne does not mean parachutist. An officer with LAPD contracted typhoid fever. Note other mentioned diseases such as bubonic plague. Note "The entire population is at risk". Ref the follow-on comments; A "daisy cutter" is not a swing blade.
disease will always spread quickly in large built up areas where it has thousands/millions of new hosts to infect, a disease can get from one side of the planet to the other in about 26 hours because of our rapid transport systems.
Many people foolishly think that these diseases have been eradicated. Nothing could be farther from the truth. They are just pushed below the surface, and kept under control. When the conditions are right they re-emerge, and are just as virulent as they ever were. When was the last time somebody died of Bubonic Plague? April 27, 2019. Yes, 5 weeks ago. As we allow health conditions to get worse and worse we are just asking for trouble.
Although we can reduce exposure to some diseases by limiting (or eliminating) contact with other people, a pandemic can find us despite our efforts to avoid it. For example, Avian (bird) flu (from wild and domestic birds), Yellow fever (from mosquitoes), and other zoonotic nightmares that are responsible for some of the world’s deadliest and most infectious epidemics... Knowledge is power. Wisdom is knowing what to do with it. .