My husband and I have been fully vaccinated and received our booster (all Moderna) in November 2021. We are booked on the TA from Barcelona to FLL on 10/31/2022, flying to Barcelona a few days prior (arriving 10/28/2022). At the moment, we are thinking about delaying our 2nd booster until early October, so we have greater immunity before we fly to and cruise from Barcelona.
We are both over 65, and I had (mild) Omicron the last week of January. My husband (over 75, with pre-existing conditions) did not contract Covid. I am still working in an office, and my husband is retired. We want maximum immunity (as possible) before we leave for Barcelona. Any thoughts?