Passengers on board Holland America Line's MS Zaandam cruise ship have been asked to remain in their state rooms.<br />According to Business Insider, that's because several crew members and guests have begun exhibiting "flu-like symptoms."<br />These individual instances of sickness have not been confirmed as COVID-19 cases.<br />The Zaandam's 842 passengers and 542 crew members are currently sailing north after being shut out of South American ports over coronavirus concerns.
