Royal Caribbean has confirmed a new norovirus outbreak after more than 90 passengers and crew on the 'Serenade of the Seas' reported gastrointestinal symptoms during a 13-night cruise from San Diego to Miami.
The outbreak, logged by the US Centres for Disease Control and Prevention (CDC) on 28 September 2025, affected 94 of 1,874 passengers (5%) and four of 883 crew members (0.5%) reported symptoms including vomiting and diarrhoea.
