My son and I both have Covid now, and are booked on a RCCL ship in the next 3 months. Once we test negative, I've heard we don't need to test for 3 months unless we have symptoms. I was told we only need notes from our respective doctors saying the date we had covid, in order to sail. Is this information correct? I don't want to fly to a cruiseport and have any problems. Thx!!