I'm seriously considering changing my route to spend a few days in Hong Kong rather than Bangkok.

If I don't need a covid test to depart Kunming then I can get an English test report there for the Canadian portion of my trip.

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This just in from Bangkok:
"IMPORTANT UPDATE: Mr. Anutin Charnvirakul, Deputy Prime Minister and Minister of Public Health has canceled the criteria for vaccination certificates before entering the country on all flights. Effective immediately."