Oasis of the Seas: Sanitation Record & Health Report

Oasis of the Seas is the ship that started Royal Caribbean's whole "let's build a floating small country" experiment back in 2009, and seventeen years and one 2024 refurbishment later, it's still hauling 5,400 passengers and 2,100 crew across 18 decks like it's no big deal. The CDC numbers, though, tell a story with a little more drama in it than the marketing brochure. Two inspections on file: a 95 in October 2025, then an 89 this past June. That's a nine-point drop in eight months, and while 89 still clears the 86-point passing bar with room to spare, "declining" is the word CDC's own trend data uses here, not us being dramatic for effect. Stack that 89 against the fleet-wide average latest score of 96.7 (median 98) across the 162 ships we track, and Oasis is sitting well below the pack — not a failure, but not exactly bragging rights either.

Here's the honest caveat: two inspections is a thin file for a ship this old and this famous, so treat the "declining" label as a real but early signal rather than a verdict etched in stone. We also don't have outbreak data available for this ship right now — CDC's outbreak records are currently unreachable on our end, so we're not going to sit here and tell you it's spotless when we genuinely can't check. What we can say is the refurb in 2024 clearly didn't come with a permanent sanitation glow-up, because the score went the wrong direction after that. For a ship class that basically invented the "small city at sea" concept, you'd hope for house money on hygiene consistency, and right now it's more of a coin flip.

Who it's for: first-time cruisers who want the full mega-ship circus — zip lines, a real ice rink, a park with actual trees — and don't want to gamble on a newer, less proven ship. The 89 is a pass, not a red flag. Who should skip it: anyone who books cruises by scanning CDC scores like a restaurant grade in a diner window. If a downward trend on your dinner plate would ruin the vacation before it starts, there are Royal Caribbean ships in this fleet posting numbers closer to that 98 median, and your peace of mind is worth the extra ten minutes of research.