PHF1 and scrapie: We measured the levels of T-Tau (Mab DA31) and P-Tau (Mabs CP13 and PHF1) in the brains of uninfected C57Bl mice and three mouse-adapted scrapie strain-infected mice using the EIMAF (Enhanced Immunoassay using Multi-Arrayed Fiberoptics) technology [23] to achieve an accurate and quantitative assessment.