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  1. VSP Home > Disease Surveillance and Investigation > Updates of GI Illness > Investigation Update on the Zaandam

Investigation Update on the Zaandam

  • Cruise Line: Holland America Line
  • Cruise Ship: Zaandam
  • Voyage Dates: 3/19 -4/3
  • Number of ill passengers out of total number of passengers: 100 of 1428 (7.00%)
  • Number of ill crew out of total number of crew: 13 of 611 (2.13%)
  • Predominant symptoms: diarrhea and vomiting
  • Actions: In response to the outbreak, Holland America Line and the crew aboard the ship took the following actions:
    • increased cleaning and disinfection procedures;
    • sent senior environmental health specialists for additional support;
    • collected stool specimens for analysis;
    • sent daily updates to CDC until the number of ill people returned to expected levels.
  • On April 3rd, VSP staff boarded the ship in San Diego to conduct a targeted environmental health assessment and make recommendations.
    • VSP staff continued to monitor the ship until the number of ill people returned to expected levels (sailing dates: 4/3-4/08).