One thing that many of us don't consider when we book a cruise is the ship's recent health inspection score. We pick a ship motivated perhaps by price, itinerary, service, food or service. Yet, cleanliness is even more important. Here is the link to the CDC Website to check how well the ship for your next cruise scored on its most recent health inspection.
Anything lower than 86% is a fail. Some ships that recently scored 100% include: Island Princess ('17 & '16,) Radiance of the Seas ('17 & '16,) Koningsdam ('17 & '16) and the Westerdam ('16.)