Did you know that the 1918 flu pandemic started in Kansas?
Could the 1918 epidemic have been part of an attempt at biological warfare by the Central Powers in WWI?
They were desperate, clutching at straws, and searching for a weapon that would help them survive. They started using poison gas,
as one alternative. Did they consider using plague?
The outbreak began in the American army; it might have decimated that army worse than any battle, and rendered it unable to come to the battlefield until after the Germans had taken Paris and rendered American assistance irrelevant.
But the plague might have gotten out of control, and all records of its use been lost/destroyed.
(Just food for thought. . . )
Read the book, The Great Influenza by John Barry.
It started in Kansas, spread to a big troop facility, and thence to the rest of the world.