Statistical analysis of PrPc levels influencing survival period of TgOvPrP4 mice inoculated with atypical scrapie.

*PrPc level set as the baseline category.Hazard ratios calculated from model used to identify predictors of survival for mice inoculated with atypical scrapie isolates and illustrating the effect associated with PrPc sera levels (the mean of each subpopulation were chosen to illustrate the effect of the PrPc sera level).