Disease and Outbreaks

The Center for Disease Control and Prevention (CDC) reported that the Rotterdam cruise ship operated by Holland America Line (HAL) experienced a norovirus outbreak during the ship’s Caribbean voyage from December 28, 2025 through January 9, 2026.

The Carnival Corporation-owned ship had eighty-one (81) guests and eight (8) crew members sickened with vomiting and diarrhea

AIDA Cruises reported to the Centers of Disease Control and Prevention (CDC) that 95 passengers and 6 crew members are sick with norovirus on its AIDAdiva ship. The AIDAdiva is currently in port in Colón, Panama as part of its 133-day cruise originating from Hamburg, Germany.

As part of the CDC’s Vessel Sanitation Program (VSP)

The Centers for Disease Control and Prevention (CDC) published a report in October 2024 stating there were at least twelve Legionnaires’ disease occurrences on two cruise ships. Ten cases were serious enough that cruise passengers required hospitalization. The CDC did not identify the cruise line(s) involved.

This story was first reported by Travel + Leisure

A month ago, we last discussed gastrointestinal illness (GI) outbreaks on cruise ships when Cunard Line’s Queen Mary 2 and Seabourn Cruise Line’s Seabourn Encore both sickened 226 passengers and crew members. These two outbreaks brought the total number of CDC-reportable cruise ship-related illnesses to twelve for 2025. Since that time, a lot

The Center for Disease Control and Prevention (CDC) reports that there have been recent norovirus outbreaks on both Cunard Line’s Queen Mary 2 and Seabourn Cruise Line’s the Seabourn Encore which have sickened 226 passengers and crew members.

Cunard’s Queen Mary 2 had approximately 2,538 guests of which 183 passengers and 14 crew members were

On March 7th, a norovirus outbreak occurred on Holland America Line’s (HAL) Rotterdam bringing the total number of gastrointestinal (GI) outbreaks on cruise ships this year to ten. A total of eighty-nine (89) passengers and four (4) crew members were reported ill during the voyage on the Rotterdam.

HAL Leads Cruise Lines in Outbreaks

CDC Reports Gastrointestinal Illness Outbreak on Radiance of the Seas

The U.S. Center for Disease Control and Prevention (CDC) reports that 170 people on the Radiance of the Seas were sickened with diarrhea and abdominal cramps among other gastrointestinal (GI) symptoms. The CDC reports that during the last cruise (September 20th– September 27th), 167 out

Numerous newspapers have been reporting that cruise ships operated by Princess Cruises and Royal Caribbean International experienced gastrointestinal (GI) outbreaks in the last week. The Centers for Disease Control and Prevention (CDC) initially reported that norovirus outbreaks sickened over three percent of the passengers on both the Sapphire Princess, operated by Princess, and the

The Centers for Disease Control and Prevention (CDC) reports that the Silver Nova cruise ship operated by Silversea Cruises is experiencing a gastrointestinal (GI) outbreak which has sickened 23 of 633 passengers (3.63%) and 1 of 538 crew members (0.19%). The predominant symptom reported by the CDC is diarrhea.

The CDC has not yet identified

12.7% of the 838 passengers aboard the Viking Neptune cruise ship are experiencing abdominal cramps, vomiting and diarrhea, according to the Centers for Disease Control and Prevention (CDC). Nearly 2% of the crew are also experiencing these symptoms of gastrointestinal illness (GI). Cruise lines are required to report GI cases to the CDC whenever

The Celebrity Summit is the latest cruise ship to experience a gastrointestinal outbreak requiring the involvement of the Center for Disease Control and Prevention (“CDC”) this year. The Celebrity operated cruise ship reported 152 of 2,144 (7.09%) passengers and 25 of 963 (2.60%) crew members experienced gastrointestinal (GI) illnesses . A total of 177 people