Covid 19 insurance

i would like to know roughly how much does the insurance costs for covid 19

If only for covid insurance I helped arranged for my friend for around 7000 thb. But require your flight details and passport details to process.

Hi All:

This may show my ignorance but here goes!

When I come to Thailand and if the rules don't change again...I have health insurance through my retirement here in Alaska. Will I be required to buy a Thai supplemental COVID insurance policy on top of my retirement health insurance?