Norovirus Outbreak on Princess Cruises’ Star Princess Impacts Over 150

More than 150 passengers and crew members aboard the Princess Cruises’ Star Princess have been infected with norovirus during a recent Caribbean voyage, according to reports from the Centers for Disease Control and Prevention (CDC). The outbreak, which occurred during a voyage from March 7, 2026, to March 14, 2026, affected 104 of 4,307 passengers (2.4%) and 49 of 1,561 crew members (3.1%).

Outbreak Details and Symptoms

The CDC was notified of the outbreak on March 11, 2026. Those affected experienced predominant symptoms of diarrhea, and vomiting. The causative agent has been identified as norovirus, a highly contagious virus that causes gastroenteritis.

Response Measures Taken

Princess Cruises and the ship’s crew implemented several measures in response to the outbreak, including:

• Increased cleaning and disinfection procedures, following their outbreak prevention and response plan.
• Collection of stool specimens from ill passengers for testing.
• Isolation of ill passengers and crew members.
• Consultation with the CDC regarding sanitation cleaning procedures and reporting protocols.

CDC Investigation

The CDC’s Vessel Sanitation Program (VSP) is currently conducting a field response, including an environmental assessment and outbreak investigation, to assist the ship in controlling the spread of the virus. More information is available on the CDC website.

Star Princess Voyage and Return

The Star Princess completed its one-week voyage on Sunday, March 14, 2026, returning to Fort Lauderdale, Florida. The vessel subsequently embarked on a new voyage headed to Princess Cays in the Bahamas on the same day, according to NBC News.

Understanding Norovirus

Norovirus is the leading cause of diarrhea and vomiting outbreaks in the United States. It spreads easily through direct contact with infected individuals, contaminated food and liquids, and touching contaminated surfaces. The CDC recommends frequent handwashing and surface disinfection to prevent the spread of norovirus.

Recent Cruise Ship Outbreaks

The Star Princess outbreak is one of several reported in 2026. The CDC also reported a norovirus outbreak on the Regent Seven Seas’ Seven Seas Mariner from January 11, 2026, to February 1, 2026, caused by E. Coli. A complete list of outbreaks under VSP jurisdiction is available on the CDC website.