Based on hygiene scores here are the most offending cruise ships. 100 is perfect. Most ships have 95 and above EXCEPT the following: (pic of ships below taken by me are not the low rated ships)
Caribbean Princess score: 86 Carnival Breeze score: 86
Ritz-Carlton Yacht Evirma: 86
MSC Magnifica: 86
Carnival Miracle: 88
National Geographic/Lindblad Sea Bird: 88
Royal c aribbean Adventure of the Seas: 89
Carnival Elation: 89Crystal Serenity: 89
Almost all other USA ships were 95 and above
SOURCE CDC
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