UPDATE: Interim Novel Influenza A (H1N1) Guidance for Cruise Ships

This document provides updated interim guidance for crew members and passengers of cruise ships originating from or stopping in ports in areas affected by the novel H1N1 influenza virus outbreak. (Updated to reflect the recent changes to the mask and respirator guidance.)

More here:
UPDATE: Interim Novel Influenza A (H1N1) Guidance for Cruise Ships