This lays the foundation for future development of more robust sensors that can significantly reduce the effect of motion artefacts in reflectance-based pulse oximetry and could have great clinical value due to significant reduction of SpO errors and false alarms associated with motion artefact, making wearable pulse oximetry more reliable in mobile applications.

The threshold between normal body temperature and fever has not been clear. The American Academy of Pediatrics (AAP) as well as the European Centre for Pediatric and Adolescent Medicine (ECPA) guideline defines fever as a temperature >100.4°F (38.0°C) [Wyckoff, 2009;Niehues, 2013] to be the current practice, regardless of age. They also recommend use of rectal thermometers in children <3 years. Several currently commercialized thermometers use such fixed-threshold-based fever alarms in their thermometers to inform the user of body temperature that is not normal.Nonetheless, more recently several publications and organizations have challenged this fixed threshold between normal temperature and fever regardless of age, specifically within the first 3 years after birth. Several studies trying to correlate body temperature to illness and infection have concluded that the upper threshold of normal body temperature varies with age [Herzog et al., 2011]. The National Institute for Health and Care Excellence [NICE, 2019] has suggested that children between 0-3 months with a temperature

Modem ear thermometry provides more precise measurements closer to those of a reference thermometer and is less likely to give false-negative readings than forehead or temporal artery measurements.