Singapore is using a walk-through heat detector to check if air travellers arriving from China and Hong Kong have fever. It is the first country in the world to use a thermal imaging system at its airport to spot travellers with SARS symptoms.
[...] Passengers just have to walk past the machine and the thermal scanner will show if the passenger has a higher body temperature than usual - one of the symptoms displayed by people with SARS. Essentially this is what officers manning the system will see. If a person is feverish, reddish spots will apear all over his face and that person will then be set aside for further examination by the nurses. The nurses will take the passenger's temperature and if neccesary send them to the hospital for checks.