Investigation Update on the Noordam

Cruise Line: Holland America Line

Cruise Ship: Noordam

Voyage Dates:10/16 - 11/1

Number of passengers who have reported being ill during the voyage out of total number of passengers: 159 of 1826(8.71%)

Number of ill crew who have reported being ill during the voyage out of total number of crew: 19 of 784 (2.42%)

Predominant symptoms: diarrhea and vomiting

Actions: In response to the outbreak, Holland America Line and the crew onboard the ship took the following actions:

• Increased cleaning and disinfection according to their outbreak prevention and response plan
• Made announcements to both notify passengers and encourage case reporting
• Sent two corporate public health officials to the ship to assist with the outbreak response and management
• Made the required initial notification report to CDC Vessel Sanitation Program and continue to make update reports twice daily
• Are collecting clinical specimens from passenger and crew cases to be submitted to CDC laboratories for analysis
• Have a cleaning/disinfection team scheduled to board when the ship arrives in Ft. Lauderdale

CDC's Vessel Sanitation Program will have two officers meeting the ship in Ft. Lauderdale to conduct a targeted environmental review of the outbreak and response activities.

On the voyage immediately following the outbreak, the case counts for both passenger and crew returned to expected levels.