> In the USA, when you receive certain vaccinations, you are given a piece of paper I hope I get a stamp in my "Yellow Card" booklet. If it's enough for yellow

> In the USA, when you receive certain vaccinations, you are given a piece of paper I hope I get a stamp in my "Yellow Card" booklet. If it's enough for yellow fever it's probably enough for COVID https://en.wikipedia.org/wiki/International_Certificate_of_Vaccination_or_Prophylaxis https://en.wikipedia.org/wiki/International_Certificate_of_V...