A cruise ship that docks at Keelung Port regularly began reporting of infectious disease cases in late April 2011. By mid-May, there were a total of 5 varicella, 2 rubella, and 1 mumps cases reported. All ill crew members were recruited from Southeast Asia and joined the cruise during late March to early April. Through treatment, isolation, strengthened disinfection, health monitoring of crew and passengers, and health education, no additional cases were reported by June 17.During June and August 2010, Hong Kong and Taiwan both reported varicella outbreaks on cruise ships. Because of the current outbreaks of varicella, rubella, and mumps, the cruise company is once again reminded to conduct new crew recruits proper health screening and vaccination, and provide as reference for Health quarantine authorities, to ensure the health of crew and passengers on board.