7.4% of Cruise Ship Passengers Reported Vomiting and Diarrhea

According to the Centers for Disease Control and Prevention's recent update, the gastrointestinal illness outbreak on the Royal Caribbean International ship Radiance of the Seas affected 7.4% of its passengers.

Additionally, the crew who reported being ill during the voyage was 8 of 910 (0.9%).

As of February 10, 2025, the writes that it's not clear what caused the outbreak, but said symptoms of infected passengers included vomiting and diarrhea.

The Voyage (20136) was between February 1, 2025, and February 8, 2025.

Per CDC protocol, the Vessel Sanitation Program remotely monitored the onboard situation, including reviewing the ship's outbreak response and sanitation procedures.

This new incident is the 8th in 2025.

The CDC confirmed that 2024 was the worst year for gastrointestinal illness outbreaks (18) on cruise ships in over a decade. Norovirus was the most common cause.

'Norovirus is often a cause of GI illness outbreaks on cruise ships, but we don't always know the cause of the outbreak when we begin an investigation.' writes the CDC.

The CDC says there are no U.S. FDA-approved norovirus vaccines available in 2025.