https://www.wired.com/story/infrared-cameras-spot-fever-not-slow-covid-19/

Anyone entering Martin Luther King Jr. Community Hospital in Los Angeles must pass before the electronic eye of the infrared camera installed last month. The worker monitoring its display sees color-coded boxes around each face in view: green if your skin temperature is less than 100 degrees Fahrenheit; red if it’s 100 or above, which prompts a request to step aside for additional screening.

“They don’t have to stop, and if you get a green box you can keep moving,” says Mark Reed, the hospital’s director of support services. “It can do up to 16 people at a time.” The hospital, which also requires employees and visitors to answer a daily questionnaire about their health, spent around $20,000 on the system after struggling to quickly screen staff with conventional thermometers during busy shift changes.