Nastiest cruise ships of all time, according to the CDC

The Center for Disease Control and Prevention (CDC) inspects cruise ships to see if they have sanitary problems that could put passengers at risk of becoming ill.

The vast majority of ships receive passing grades of at least 86 out of 100 points, but a handful has failed for reasons such as storing food at improper temperatures and not having adequate drinking water handling procedures. The 10 lowest scoring inspections the CDC has ever performed fall between 1995 and 2017, but six of them occurred over 10 years ago.

These are the 10 lowest inspection points the CDC has ever given a cruise ship.