Investigation Update on the Oceania Riviera

Cruise Line: Oceania Cruises

Cruise Ship: Oceania Riviera

Voyage Dates: March 20 - April 3, 2016

Number of passengers who have reported being ill during the voyage out of total number of passengers onboard: 98 of 1,204 (8.13%)

Number of crew who have reported being ill during the voyage out of total number of crew onboard: 6 of 776 (0.77%)

Predominant symptoms: vomiting, diarrhea

Causative agent: Norovirus

Actions: In response to the outbreak, Oceania Cruises and the crew aboard the ship reported the following actions:

• Increasing cleaning and disinfection procedures according to their outbreak prevention and response plan,
• Collecting stool specimens from passenger and crew gastrointestinal illness cases for testing, and
• Making multiple daily reports of gastrointestinal illness cases to the VSP.

CDC Vessel Sanitation Program is monitoring the outbreak and the ship’s response procedures. Specimens have been collected, tested onboard and found to be positive for norovirus. The specimens will be sent to CDC for additional testing.