barely significantp = 0.062
Incubation time and attack rate depends on PrP C expression levels When tg a 20 mice were challenged for 10 min, variations in the concentration of aerosolized IBH had a barely significant influence on survival times ( p = 0.062; Fig. 1F ), whereas variations in the duration of exposure of tg a 20 mice affected their life expectancy significantly ( p <0.001; Fig. 1G ).