Thanks. I called, spoke to an irritable rep who cited the passage you quote. Then after much delay the rep found another message on their site that states that they "strongly recommend" the booster. Then after that the rep found a statement that they REQUIRE the booster. The rep told me this was a New York City requirement but I don't think so. Sounds as though Cunard made this decision, if in fact it's correct, and not a legal requirement. I only found this out by accident. Cunard never informed me. As I have had health problems due to the initial jabs I can't take the risk of more. With absolutely NO requirements to enter the UK - no Covid vaccinations, no tests - this is really unreasonable. A prior PCR test should be quite enough. Looks as though I'll have to cancel. REALLY Cunard needs to make these matters CLEAR and inform passengers. Their website is a bundle of contradictions.