Figure 1
From: The evaluation of exposure risks for natural transmission of scrapie within an infected flock
Hazard ratios and 95% confidence intervals for survival time for the exposure groups compared to the baseline birth cohort (red line). Model 1: the baseline is the naturally exposed VLA scrapie flock 2003 birth cohort. Model 2: the baseline is the naturally exposed VLA scrapie flock 2003 birth cohort.