Making people stand in front of a scanner to have their body temperature read can result in a large number of false negatives, allowing people with Covid-19 to pass through airports and hospitals undetected.
Leading experts in physiology have suggested instead that taking temperature readings of a person's fingertips and eyes would give a significantly better and more reliable reading and help identify those with fever. The study was published in Experimental Physiology.
"If scanners are not giving an accurate reading, we run the risk of falsely excluding people from places they may want, or need, to go, and we also risk allowing people with the virus to spread the undetected infection they have," Professor Mike Tipton of the University of Portsmouth said.