Vendaval
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This is a novel way of spotting passengers with higher body temperatures as in the case of the flu, but higher temperatures can also results from exertion, running from one terminal to another. So the results are not a guarantee of health one way or another.
"How thermal-imaging cameras can spot flu fevers"
By BARBARA ORTUTAY, AP Technology Writer - Fri May 1, 2009 3:54PM EDT
NEW YORK -
"To screen passengers for swine flu and other contagious diseases, some airports use thermal imaging cameras to see whether travelers have fevers, without having to stick thermometers in their mouths. So how do the cameras work?
The devices are just like regular cameras, except that instead of recording light that objects reflect, these cameras are sensitive to heat. They can even work in the dark.
Recordings from these cameras show up on video screens with hotter objects looking brighter. The systems are very sensitive, measuring temperatures down to a fraction of a degree Fahrenheit, said Andrew Sarangan, an associate professor in the University of Dayton's electro-optics program."
http://tech.yahoo.com/news/ap/20090501/ap_on_hi_te/us_tec_swine_flu_thermal_imaging
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Airports using thermal-imagining camers to detect flu f... - 
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