I had an email yesterday from Celebrity in advance of our 13th June cruise out of Rome.   Under the heading: VACCINATION POLICY TO SAIL   it clearly says "As of May 5, 2022, all guests ages 12 and older must be fully vaccinated".    And yet, in the next paragraph says "Unvaccinated Guests: Will not be required to present a pre-arrival test. Instead, guests will be tested at the Terminal prior to Embarkation"   If we all have to be vaccinated, who are the unvaccinated gue