“Examples are Kuru among the Fore tribe of Papua New Guinea and mad cow disease which caused Creutzfeldt-Jakob Disease in humans, though thus far, prion diseases have been limited due to their long incubation periods. Due to this reason, they have never been used in warfare situations. Supposedly the pandemic was caused by a new, previously undiscovered type of prion, one whose infectivity decreased the time between exposure and onset of symptoms to null, creating a devastating weapon.”
