Before the war, multiple effective vaccines were invented and distributed, promising medications for those sick are distributing, and we have a better understan

Before the war, multiple effective vaccines were invented and distributed, promising medications for those sick are distributing, and we have a better understanding of the types of events that cause mass infection (conferences of course!) and a realization that aviation was not the super spreader event that many other things were. We even have increasingly better pictures of vaccine cadence (which I hope just become annual soon!). Covid as a crisis needed to end, and Ukraine has served as an odd segue out of it.