Never trust the officialdom...
Proof of Vaccination is sufficient...
Testing and lockdown do not work..... What's today you get it 30 minutes after testing?
Cleanliness and discipline does help
It's the Flu folks...be doing for elderly and frail for centuries...while nothing like the Spanish Flu of 1918/19
So learn to live with it along with all of other lives evils.
This will play very nicely for a good earner when they concoct your results to lead you away to their costly solutions.
Go back to your planning Khun Anutin...and try harder please.