Here is a detailed article from the Points Guy on what can happen to Americans who test positive overseas.
Copy and paste it in. -Tom
https://thepointsguy.com/guide/positive-covid-abroad-what-to-do/?utm_source=TPG%20Daily%20Newsletter&utm_medium=email&utm_campaign=1915021&utm_usr=4dce219d2d312a42bb4238a91f8c6832b022489b7c037548dae7fdb7c8cf64b9&utm_msg=1b4d7a435c8f47b2878869d797c0a385&utm_date=2021-01-19
I suppose even after vaccination the CDC will require testing. Then ppl run the roulette of testing’s high failure rate. In my area testing is free and fast at Raymond James stadium in Tampa. They send test, telephone and email notification of results in the same day. I’ve had the first vaccine shot and get the 2nd on Feb 2nd. Looking forward to cruising but not the heavy hand of CDC’s requirements.