Developing an Alogorithm to Screen if a Person is Feverish Due to a Disease like Covid 19
Zhiliang Ma
Sentinel Secondary
Floor Location : M 055 H

The purpose of my science fair project is to use a CMOS FLIR camera to determine whether someone has a core body temperature that is above the normal temperature (36.8℃) through external non-invasive methods of measurement. Health Canada has set a threshold of 38℃ as a COVID-19 indicator. I am hoping that this science fare project will assist Health Canada in its efforts to manage the COVID pandemic in Canada. If Health Canada finds this technique useful, they are welcome to share it with the WHO.
It is evident that a single canthus measurement is inadequate to determine core body temperature. What interests me in this science fair project is to be able to do a COVID 19 pre-screen of a large number of people, such as students at a school or people in an airport. If flagged by the pre-screen, the potential COVID-19 carrier can then be assessed by a health care professional.
For the purpose of this study, the throat temperature will be used as a measure of core temperature. A second external temperature, which is the carotid artery temperature, will be used to supplement the canthus temperature reading. Two mathematical algorithms are being developed to estimate the core temperature using a canthus and a carotid temperature measurement. The two algorithms provide for an estimate of the throat temperature of the test subjects. The estimates are compared to the actual throat temperature reading and a good correlation have been found. In the best of all worlds, it would seem obvious to take a canthus, a carotid, and a throat temperature reading to determine if someone has a fever. As a matter of convenience, the two algorithms may allow us to pre-screen test subjects so that not everyone has to undergo a third reading. However, should Health Canada deem it appropriate, they are welcome to take three temperature measurements of the canthus, carotid and throat temperatures of the test subject. Normal procedure for a health care professional is to do a tympanic temperature reading which measures the core temperature of the brain. It appears that the throat temperature my be a good substitute for a tympanic temperature reading.
To date, a review of a data set of 20 test subjects of varied ages appear to provide a working set of algorithms. Health Canada is invited to assist in this validation of my non-invasive method of core temperature measurement.