Corrected entry: When Tony's henchmen isolate the pathogen from Jack's spinal fluid, the head scientist says the viral load is higher than hoped for, explicitly stating for the first time that the pathogen is a virus. This is in contrast to everyone else referring to it as a prion up till this point.
Corrected entry: The head scientist tells Tony that the only sure way to destroy the pathogen is to expose it to temperatures around 500 degrees celsius. Surgical and lab equipment are sterilized at 120 degrees celsius under the (legitimate) assumption that nothing survives this temperature. Prions and viruses, both mostly protein, would have fallen apart by this temperature.