The same way standard protocols are used to prevent transmission of viruses & bacteria. Apparently they don't work on prions: > In a particularly vexing twist

The same way standard protocols are used to prevent transmission of viruses & bacteria. Apparently they don't work on prions: > In a particularly vexing twist, prions are also nearly impervious to destruction, even when attacked using a strenuous combination of disinfectants, heat, and pressure.