Thought I would update following our cruise. I was disappointed that there seemed to be little interest in dealing with covid onboard. Our vaccination cards were never requested. The crew did wear masks, albeit often under the nose. Masks were provided in our rooms. Unfortunately hardly any of the passengers bothered to wear them. There was never any mention of anyone testing positive. Since it is impossible to wear a mask while eating, I think most people just give up onboard.
By day 3 of our cruise we began to hear coughing onboard and on the buses. By the end of the cruise I would guess about half of the passengers were coughing. When we returned home we tested for covid. My husband is positive, I am negative. Strange since we were ,together most of the time, and shared a small cabin. His symptoms are mild, so it is just an inconvenience. We are both vaccinated, and have had 3 boosters.
I would not recommend a river cruise if you have chosen not to be vaccinated.
I am sure that ignoring covid is a business decision for Viking. Most people seem to be happy to try to carry on without giving it much thought. Unfortunately it is still very much with us.