Differences between least squares means for generations over the entire post-inoculation period, and significance of the interaction between generations and days post-inoculation.

The evolution (profiles) during the 7 days post-inoculation of the 129/Sv and the SJL/J parental strains were compared to the evolution (profiles) of the F1 and the F2 generations. A non significant generation-day interaction means that the profiles of the two generations involved are parallel whereas a significant one means a different pattern.BW, relative body weight; LVLd7, lung viral load at day 7 pi; MV, minute volume; EB, expiratory balance; RR, respiratory rate; TV, tidal volume.***, p**, p*p