We searched Google Scholar and PubMed using the terms “prion”, “Creutzfeldt-Jakob disease”, “alfa-synuclein”, “tau protein”, “parkinsonism”, “Lewy body”, “tauopathy”, “Parkinson’s disease”, “MSA”, “PSP”, “CBD”, “AD” and “Pick’s disease”, each in combination with “real time-quaking-induced conversion” or “RT-QuIC” or “PMCA”. The gene discussed is MAPT; the disease is red-green color blindness.