[Bear_Slayer]

I'm not sure they had that technology in 1918

Soldiers have been using chem/bio weapons for ages. They would hurl dead/diseased animals and humans over the castle walls. The pasteurization process was discovered in 1864, so by 1918, there must have been some greater understanding of organisms and how to harness them.

[virgil]

As far as the military creating (engineering)a virus, I'm not so sure. I don't think viruses were all that well understood in 1918. We didn't get penicillin for bacteria until 40s or 50s.

[Paul_Denton]

Soldiers have been using chem/bio weapons for ages. They would hurl dead/diseased animals and humans over the castle walls. The pasteurization process was discovered in 1864, so by 1918, there must have been some greater understanding of organisms and how to harness them.

Good point. With nutcases ruling China, North Korea, whose to say neither of them or some other dictator would not create it? You should read Mount Dragon. It is about a flu-based bio weapon.