The US Centers for Disease Control and Prevention (CDC) on Thursday (30 December) strengthened its advice for cruising, upping its warning for cruise travel to level four – its highest level.
The CDC said Covid-19 was continuing to spread quickly in confined spaces, such as on a ship, and said the likelihood of infection was therefore high.
It also said there had been an increase in cases onboard cruise ships following the emergence of the Omicron variant of Covid-19, now known to be significantly more transmissible than earlier variants.
