- The presence of fever (within 24 hours prior to randomization), defined as oral temperature >38°C/100.4°F, axillary temperature >38.1°C/100.6°F, tympanic temperature >38.5°C/ 101.2°F, or a rectal/core temperature >39°C/102.2°F OR hypothermia (within 24 hours prior to randomization), core temperature <35°C/95°