Figure 1
Pyrexia in sheep after RVFV 56/74 challenge. Rectal body temperatures in degrees Celsius (°C) were recorded daily during the experimental period. Fever was defined as a temperature above 40.3 °C (dashed line) based on the mean plus three standard deviations of individual temperatures recorded in all sheep just before challenge. The graphs display individual rectal temperatures sampled at similar times of sheep from the different vaccine groups. Shadowed areas show the pyrexic period of each group. Sheep with no fever are highlighted in green symbols.