Almost all cruise ships in US waters have recently reported Covid-19 cases among the crew or passengers despite precautionary measures to prevent the spread of the coronavirus such as testing, vaccination and mask-wearing. The US Centers for Disease Control and Prevention (CDC) has now advised tourists to avoid travelling by cruise ships, even if they have completed the full schedule of vaccination.
The health administrator has engendered 91 ships with a ‘yellow’ status and three with ‘orange’...
https://www.marineinsight.com/shipping-news/covid-cloud-hangs-over-cruise-ships-despite-precautions/