Figure 2.

Summary of IBR trials. For virus isolation (VI), minimum is defined as the day when shedding was first detected, peak is when shedding was at the maximum, and resolution when shedding ceased. For rectal temperature (Temp), minimum is defined as the day when rectal temperature first exceeded 40°C, peak when rectal temperature was highest, and resolution defined as when rectal temperature was less than 40°C. For serum neutralization (Serum), minimum is defined as the day when seroconversion was first detected and peak when serum neutralization was highest. For clinical signs (CS), minimum is defined as the day when clinical signs were first detected, peak being when clinical signs were the most severe, and resolution when clinical signs resumed normal limits.