Dr. Stanley Prusiner concluded that the infective agent of CJD was not a virus because it was not sensitive to radiation, which mutates nucleic acids.

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Dr. Stanley Prusiner concluded that the infectious agent causing Creutzfeldt-Jakob Disease (CJD) was not a virus because it was resistant to radiation, which typically mutates nucleic acids. This led to the discovery of prions, infectious proteins without nucleic acids.

Dr Stanley Prusiner Concluded That the Infective Agent of CJD