Temperature Check

[LeedsRhinos]

Arriving at Hong Kong airport last week we had to pass through a temperature check area.
Looking back I saw a man looking at a monitor which had a thrermal image of everyone walking past.
Any ideas what they were looking for?

[nickmo]

The heat scan is to detect SARS sufferers. If you have a raised temperature you are likely to have an infection (as flu like diseases raise the body temp.) and this is to detect the carrier before there is another outbreak.

But there are scanners that can detect minute traces of explosives that remain on the skin of someone who has touched them even a few days ago, but the disease control one is at HK.