Unless you are well heeled, you just about need to buy travel insurance that will cover most of your costs if you test positive for COVID at any time during your trip. It also covers an air ambulance if you need to be transferred to a state side hospital or God forbid, need to have your remains repatriated. My son and his new wife are on their honeymoon on a tiny Belizean island and the day before they travel home, they have to do a COVID test and God forbid they test positive or they will be "stuck" in a COVID quarantine hotel for an additional 10 days. Different times we are in due to COVID...