Planning a cruise this summer? Some additional planning may help you avoid getting sick once you're on the high seas.

advertisement | advertise on newsday

The Centers for Disease Control and Prevention says make sure you are up to date on vaccinations for routine diseases such as measles, mumps and rubella. While these illnesses are relatively rare in the United States, your fellow cruisegoers and the crew may be from countries where the diseases are more widespread and vaccinations are not routine. Depending on your ports of call, you may need other vaccinations. To check, go to

The CDC notes that outbreaks of nausea, vomiting and diarrhea caused by viral gastroenteritis are routinely reported on cruise ships. Best way to avoid contracting and spreading this nasty virus is with constant hand washing. Always carry a bottle of hand sanitizer because railings, furniture and other surfaces in common areas can harbor the virus.