I am booked and was eager to go on the Jan 8 Antarctica trip, but, although healthy, I am on the higher end of the age spectrum. With that in mind, I am concerned there is not enough time for the scientists to figure out to what extent existing vaccinations protect against the new Omicron variant. As a longtime Tauck traveler, I am hoping Tauck will be responsible enough to consider the welfare of its customers and allow us to rebook for next Antarctica season. The risk of a passenger infecting others on a small ship in the middle of nowhere, with minimal medical facilities is greater than it might be in other circumstances.