Greyeyes says "The temperatures reached by the burning pyres are sufficient to kill the virus". Yes, I'm sure they would if all the fluids within a carcase are allowed to reach those temparatures. Vapour would leave the internal relatively cool parts via heat generated cracks in the body. I have never heard of any research done to verify the efficacy of the pyre method - It's just assumed to work.

I was a British Coal Scientist whose main job was reproducing underground fire conditions in an experimental simulated mine roadway built at a laboratory. We could never assume anything worked without trying it and examining the effects. That setup would have been perfect for building a pyre at one end, burning a carcase containing a harmless virus and detecting its presence and life at the downwind end, using different known wind speeds.

Ray