When I got back from Ho Chi Minh City last night, I walked through the thermo scan set up at the exit for all passengers. Curious to know how this gadget works, I stopped by for a photo-op and a chat with the officials on duty.
I was registered with 34.7 degree celcius. Anything over 38 degree comes in for further investigation.
Thermo scan machines are necessary in most of the air terminals. That's why people are ready for the scanning process after reaching airport.
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