Infrared cameras and software can help detect sick people based on body temperature.
Gary Strahan, Founder of Infrared Cameras Inc., on CNN (August 4, 2014) discussing how ICI’s thermal imaging cameras and technological software may be used to limit a potentially infected person from spreading a viral infection, like Ebola, globally. Early symptoms of the Ebola virus include sudden onset of fever.
You can also view the story on CNN.