As part of a project, I am exploring a fictional biological/chemical weapon that can rapidly (and indiscriminately) kill by way of petrification.
To clarify, By petrification, I’m not necessarily talking about the slow process of turning organic matter into fossils. I’m interested in conditions, diseases or other methods that cause humans (or animals in a broader sense) to die in a “stiff” state. My story has interesting sub plot about a mysterious “Medusa-like” weapon, it’s details however, are non-existent.
I have found various medical conditions that can gradually calcify a range of tissues, problem being these conditions are generally treatable and do not carry a level of lethality ideal as a weapon. Some other conditions seem to be genetic and degenerative over a number of years, making them far too slow to strategically effect the outcome of a war and the concept of a genetic weapon seems difficult to realise (please correct me if I’m wrong).
Please help me expand my idea into a horrific weapon against humanity!
EDIT: Another clarification: my intention was to have this substance delivered to a large area, affecting thousands of people, symptoms showing in a matter of hours and death in a few days. Hence I added the weapon-of-mass-destruction tag.