WW2 Spanish Flu Analogue

[Douglas]

Is it possible for a serious disease to sweep across the globe following WW2's conclusion? What would the effects be?

[Thande]

Well, the Germans and the Japanese were both experimenting with weaponised versions of bubonic plague and similar; I suppose they could have used them at defeat in 1945 as a doomsday weapon on their own people to infect as many Allied troops as possible? (Quite James Bondian, I admit).

[panzerjay]

that seems least likely since sanitary habits keep diseases at best localized. plausible fear is blight of crops.