Descriptive analysis of data from TNA study

1 Introduction

2 Data description

2.1 Viral concentration (Cq-PPR)

Group-wise smoothed trajectories superimposed on Cq-PPR values of individual goats over the days following challenge.

Figure 2.1: Group-wise smoothed trajectories superimposed on Cq-PPR values of individual goats over the days following challenge.

Box-wise smoothed trajectories superimposed on Cq-PPR values of individual goats over the days following challenge.

Figure 2.2: Box-wise smoothed trajectories superimposed on Cq-PPR values of individual goats over the days following challenge.

2.2 Clinical score

The clinical score can be considered quantitative, but is discrete and greater or equal than 0. Furthermore, the variability seems to change abruptly starting from day 8, where there are no longer any 0s observed in the clinical scores.

Group-wise smoothed trajectories superimposed on Clinical scores of individual goats over the days following challenge.

Figure 2.3: Group-wise smoothed trajectories superimposed on Clinical scores of individual goats over the days following challenge.

Box-wise smoothed trajectories superimposed on Clinical scores of individual goats over the days following challenge.

Figure 2.4: Box-wise smoothed trajectories superimposed on Clinical scores of individual goats over the days following challenge.

Number of zero-valued clinical scores by day and group.

Figure 2.5: Number of zero-valued clinical scores by day and group.

3 Conclusions

  • The descriptive plots for Cq-PPR don’t suggest any difference between the control and test groups.

  • For the clinical scores, there is some evidence suggesting a better outcome for the treated group, although there is one of the three test boxes that performed as badly as the control groups.