For what reason to measure fever by thermography?
An important indicator of the presence of an infection is elevated body temperature (compared to other people in your environment), commonly known as fever. Thermal imaging is the ideal method to scan individuals or large crowds of people. For this, the temperature of the internal angle of the eye is measured and an alarm is activated when a divergence is detected. In this way, it is possible to recognize people with a high body temperature quickly and reliably as well as to separate it for more exact control. The other sensor works in the same way.
Astronauts have all kinds of sensors onboard to monitor their health, minute by minute. If a group of people, whether in a city or in a town, pass through a portal connected to NASA-type sensors, it could be known who is infected and be set apart for recognition and care, preventing the blocking of cities, countries, the economy, etc. and preventing people from having mental problems due to prolonged isolation without being sick.
There are many space sensors in NASA, ESA, JAXA, CNES ... because they can be used to solve health problems, here on Earth.